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Finding the Fourth Proportional to 539,187.40, 744,073.48 and 297,471.92

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Solution

The fourth proportional to 539,187.40, 744,073.48 and 297,471.92 is: 410,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,187.40 : 744,073.48 = 297,471.92 : x
  2. Step 2: Convert to fraction form
    539,187.40/744,073.48 = 297,471.92/x
  3. Step 3: Cross multiply
    539,187.40x = 744,073.48 × 297,471.92
  4. Step 4: Simplify right side
    539,187.40x = 221,340,965,229.32
  5. Step 5: Solve for x
    x = 221,340,965,229.32/539,187.40
  6. Step 6: Final answer
    x = 410,508.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.