Home / 1,119,392.80-1,679,089.20-371,438.80

Finding the Fourth Proportional to 1,119,392.80, 1,679,089.20 and 371,438.80

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Solution

The fourth proportional to 1,119,392.80, 1,679,089.20 and 371,438.80 is: 557,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,392.80 : 1,679,089.20 = 371,438.80 : x
  2. Step 2: Convert to fraction form
    1,119,392.80/1,679,089.20 = 371,438.80/x
  3. Step 3: Cross multiply
    1,119,392.80x = 1,679,089.20 × 371,438.80
  4. Step 4: Simplify right side
    1,119,392.80x = 623,678,877,540.96
  5. Step 5: Solve for x
    x = 623,678,877,540.96/1,119,392.80
  6. Step 6: Final answer
    x = 557,158.20

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Half scale
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Double scale
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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.