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Finding the Fourth Proportional to 625,084.12, 862,616 and 338,604.12

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Solution

The fourth proportional to 625,084.12, 862,616 and 338,604.12 is: 467,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,084.12 : 862,616 = 338,604.12 : x
  2. Step 2: Convert to fraction form
    625,084.12/862,616 = 338,604.12/x
  3. Step 3: Cross multiply
    625,084.12x = 862,616 × 338,604.12
  4. Step 4: Simplify right side
    625,084.12x = 292,085,331,577.92
  5. Step 5: Solve for x
    x = 292,085,331,577.92/625,084.12
  6. Step 6: Final answer
    x = 467,273.64

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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.