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Finding the Fourth Proportional to 625,162, 862,723.92 and 338,684.08

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Solution

The fourth proportional to 625,162, 862,723.92 and 338,684.08 is: 467,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,162 : 862,723.92 = 338,684.08 : x
  2. Step 2: Convert to fraction form
    625,162/862,723.92 = 338,684.08/x
  3. Step 3: Cross multiply
    625,162x = 862,723.92 × 338,684.08
  4. Step 4: Simplify right side
    625,162x = 292,190,857,139.19
  5. Step 5: Solve for x
    x = 292,190,857,139.19/625,162
  6. Step 6: Final answer
    x = 467,384.23

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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.