Home / 765,517.68-1,148,393.16-391,414.32

Finding the Fourth Proportional to 765,517.68, 1,148,393.16 and 391,414.32

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Solution

The fourth proportional to 765,517.68, 1,148,393.16 and 391,414.32 is: 587,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,517.68 : 1,148,393.16 = 391,414.32 : x
  2. Step 2: Convert to fraction form
    765,517.68/1,148,393.16 = 391,414.32/x
  3. Step 3: Cross multiply
    765,517.68x = 1,148,393.16 × 391,414.32
  4. Step 4: Simplify right side
    765,517.68x = 449,497,527,814.05
  5. Step 5: Solve for x
    x = 449,497,527,814.05/765,517.68
  6. Step 6: Final answer
    x = 587,181.12

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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.