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Finding the Fourth Proportional to 539,113.20, 807,600.60 and 472,628.40

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Solution

The fourth proportional to 539,113.20, 807,600.60 and 472,628.40 is: 708,005.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,113.20 : 807,600.60 = 472,628.40 : x
  2. Step 2: Convert to fraction form
    539,113.20/807,600.60 = 472,628.40/x
  3. Step 3: Cross multiply
    539,113.20x = 807,600.60 × 472,628.40
  4. Step 4: Simplify right side
    539,113.20x = 381,694,979,417.04
  5. Step 5: Solve for x
    x = 381,694,979,417.04/539,113.20
  6. Step 6: Final answer
    x = 708,005.26

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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.