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Finding the Fourth Proportional to 539,593.20, 809,389.80 and 329,641.20

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Solution

The fourth proportional to 539,593.20, 809,389.80 and 329,641.20 is: 494,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,593.20 : 809,389.80 = 329,641.20 : x
  2. Step 2: Convert to fraction form
    539,593.20/809,389.80 = 329,641.20/x
  3. Step 3: Cross multiply
    539,593.20x = 809,389.80 × 329,641.20
  4. Step 4: Simplify right side
    539,593.20x = 266,808,224,939.76
  5. Step 5: Solve for x
    x = 266,808,224,939.76/539,593.20
  6. Step 6: Final answer
    x = 494,461.80

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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.