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Finding the Fourth Proportional to 625,155.06, 862,717.32 and 338,675.88

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Solution

The fourth proportional to 625,155.06, 862,717.32 and 338,675.88 is: 467,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,155.06 : 862,717.32 = 338,675.88 : x
  2. Step 2: Convert to fraction form
    625,155.06/862,717.32 = 338,675.88/x
  3. Step 3: Cross multiply
    625,155.06x = 862,717.32 × 338,675.88
  4. Step 4: Simplify right side
    625,155.06x = 292,181,547,542.24
  5. Step 5: Solve for x
    x = 292,181,547,542.24/625,155.06
  6. Step 6: Final answer
    x = 467,374.52

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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.