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Finding the Fourth Proportional to 625,126.52, 862,673.28 and 338,653.64

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Solution

The fourth proportional to 625,126.52, 862,673.28 and 338,653.64 is: 467,341.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,126.52 : 862,673.28 = 338,653.64 : x
  2. Step 2: Convert to fraction form
    625,126.52/862,673.28 = 338,653.64/x
  3. Step 3: Cross multiply
    625,126.52x = 862,673.28 × 338,653.64
  4. Step 4: Simplify right side
    625,126.52x = 292,147,446,402.74
  5. Step 5: Solve for x
    x = 292,147,446,402.74/625,126.52
  6. Step 6: Final answer
    x = 467,341.31

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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.