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Finding the Fourth Proportional to 625,282.44, 862,893.72 and 338,804.61

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Solution

The fourth proportional to 625,282.44, 862,893.72 and 338,804.61 is: 467,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,282.44 : 862,893.72 = 338,804.61 : x
  2. Step 2: Convert to fraction form
    625,282.44/862,893.72 = 338,804.61/x
  3. Step 3: Cross multiply
    625,282.44x = 862,893.72 × 338,804.61
  4. Step 4: Simplify right side
    625,282.44x = 292,352,370,276.05
  5. Step 5: Solve for x
    x = 292,352,370,276.05/625,282.44
  6. Step 6: Final answer
    x = 467,552.50

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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.