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Finding the Fourth Proportional to 625,071, 862,602.12 and 338,591.08

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Solution

The fourth proportional to 625,071, 862,602.12 and 338,591.08 is: 467,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,071 : 862,602.12 = 338,591.08 : x
  2. Step 2: Convert to fraction form
    625,071/862,602.12 = 338,591.08/x
  3. Step 3: Cross multiply
    625,071x = 862,602.12 × 338,591.08
  4. Step 4: Simplify right side
    625,071x = 292,069,383,421.09
  5. Step 5: Solve for x
    x = 292,069,383,421.09/625,071
  6. Step 6: Final answer
    x = 467,257.93

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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.