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Finding the Fourth Proportional to 625,021.04, 862,529.28 and 338,540.24

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Solution

The fourth proportional to 625,021.04, 862,529.28 and 338,540.24 is: 467,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,021.04 : 862,529.28 = 338,540.24 : x
  2. Step 2: Convert to fraction form
    625,021.04/862,529.28 = 338,540.24/x
  3. Step 3: Cross multiply
    625,021.04x = 862,529.28 × 338,540.24
  4. Step 4: Simplify right side
    625,021.04x = 292,000,869,458.23
  5. Step 5: Solve for x
    x = 292,000,869,458.23/625,021.04
  6. Step 6: Final answer
    x = 467,185.66

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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.