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Finding the Fourth Proportional to 539,020.40, 807,850.20 and 272,854.40

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Solution

The fourth proportional to 539,020.40, 807,850.20 and 272,854.40 is: 408,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,020.40 : 807,850.20 = 272,854.40 : x
  2. Step 2: Convert to fraction form
    539,020.40/807,850.20 = 272,854.40/x
  3. Step 3: Cross multiply
    539,020.40x = 807,850.20 × 272,854.40
  4. Step 4: Simplify right side
    539,020.40x = 220,425,481,610.88
  5. Step 5: Solve for x
    x = 220,425,481,610.88/539,020.40
  6. Step 6: Final answer
    x = 408,937.18

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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.