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Finding the Fourth Proportional to 539,389.20, 807,528.60 and 539,389.20

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Solution

The fourth proportional to 539,389.20, 807,528.60 and 539,389.20 is: 807,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,389.20 : 807,528.60 = 539,389.20 : x
  2. Step 2: Convert to fraction form
    539,389.20/807,528.60 = 539,389.20/x
  3. Step 3: Cross multiply
    539,389.20x = 807,528.60 × 539,389.20
  4. Step 4: Simplify right side
    539,389.20x = 435,572,205,531.12
  5. Step 5: Solve for x
    x = 435,572,205,531.12/539,389.20
  6. Step 6: Final answer
    x = 807,528.60

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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.