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Finding the Fourth Proportional to 625,470.93, 863,151.26 and 338,990.94

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Solution

The fourth proportional to 625,470.93, 863,151.26 and 338,990.94 is: 467,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,470.93 : 863,151.26 = 338,990.94 : x
  2. Step 2: Convert to fraction form
    625,470.93/863,151.26 = 338,990.94/x
  3. Step 3: Cross multiply
    625,470.93x = 863,151.26 × 338,990.94
  4. Step 4: Simplify right side
    625,470.93x = 292,600,455,294.63
  5. Step 5: Solve for x
    x = 292,600,455,294.63/625,470.93
  6. Step 6: Final answer
    x = 467,808.24

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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.