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Finding the Fourth Proportional to 625,841.32, 937,795.76 and 422,641.08

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Solution

The fourth proportional to 625,841.32, 937,795.76 and 422,641.08 is: 633,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,841.32 : 937,795.76 = 422,641.08 : x
  2. Step 2: Convert to fraction form
    625,841.32/937,795.76 = 422,641.08/x
  3. Step 3: Cross multiply
    625,841.32x = 937,795.76 × 422,641.08
  4. Step 4: Simplify right side
    625,841.32x = 396,351,012,825.82
  5. Step 5: Solve for x
    x = 396,351,012,825.82/625,841.32
  6. Step 6: Final answer
    x = 633,309.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.