Home / 1,119,378.30-1,679,067.45-371,424.30

Finding the Fourth Proportional to 1,119,378.30, 1,679,067.45 and 371,424.30

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Solution

The fourth proportional to 1,119,378.30, 1,679,067.45 and 371,424.30 is: 557,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,378.30 : 1,679,067.45 = 371,424.30 : x
  2. Step 2: Convert to fraction form
    1,119,378.30/1,679,067.45 = 371,424.30/x
  3. Step 3: Cross multiply
    1,119,378.30x = 1,679,067.45 × 371,424.30
  4. Step 4: Simplify right side
    1,119,378.30x = 623,646,452,269.04
  5. Step 5: Solve for x
    x = 623,646,452,269.04/1,119,378.30
  6. Step 6: Final answer
    x = 557,136.45

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Half scale
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Double scale
Find fourth proportional to 1,119,379.30, 1,679,068.95 and 371,425.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.