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Finding the Fourth Proportional to 625,160.88, 862,717.23 and 338,678.91

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Solution

The fourth proportional to 625,160.88, 862,717.23 and 338,678.91 is: 467,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,160.88 : 862,717.23 = 338,678.91 : x
  2. Step 2: Convert to fraction form
    625,160.88/862,717.23 = 338,678.91/x
  3. Step 3: Cross multiply
    625,160.88x = 862,717.23 × 338,678.91
  4. Step 4: Simplify right side
    625,160.88x = 292,184,131,094.62
  5. Step 5: Solve for x
    x = 292,184,131,094.62/625,160.88
  6. Step 6: Final answer
    x = 467,374.30

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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.