Home / 1,119,620.70-1,679,431.05-320,855.40

Finding the Fourth Proportional to 1,119,620.70, 1,679,431.05 and 320,855.40

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Solution

The fourth proportional to 1,119,620.70, 1,679,431.05 and 320,855.40 is: 481,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,620.70 : 1,679,431.05 = 320,855.40 : x
  2. Step 2: Convert to fraction form
    1,119,620.70/1,679,431.05 = 320,855.40/x
  3. Step 3: Cross multiply
    1,119,620.70x = 1,679,431.05 × 320,855.40
  4. Step 4: Simplify right side
    1,119,620.70x = 538,854,521,320.17
  5. Step 5: Solve for x
    x = 538,854,521,320.17/1,119,620.70
  6. Step 6: Final answer
    x = 481,283.10

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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.