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Finding the Fourth Proportional to 625,113.14, 862,655.34 and 338,634.40

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Solution

The fourth proportional to 625,113.14, 862,655.34 and 338,634.40 is: 467,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,113.14 : 862,655.34 = 338,634.40 : x
  2. Step 2: Convert to fraction form
    625,113.14/862,655.34 = 338,634.40/x
  3. Step 3: Cross multiply
    625,113.14x = 862,655.34 × 338,634.40
  4. Step 4: Simplify right side
    625,113.14x = 292,124,773,467.70
  5. Step 5: Solve for x
    x = 292,124,773,467.70/625,113.14
  6. Step 6: Final answer
    x = 467,315.04

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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.