Home / 782,327.17-1,079,488.11-455,693.93

Finding the Fourth Proportional to 782,327.17, 1,079,488.11 and 455,693.93

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Solution

The fourth proportional to 782,327.17, 1,079,488.11 and 455,693.93 is: 628,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,327.17 : 1,079,488.11 = 455,693.93 : x
  2. Step 2: Convert to fraction form
    782,327.17/1,079,488.11 = 455,693.93/x
  3. Step 3: Cross multiply
    782,327.17x = 1,079,488.11 × 455,693.93
  4. Step 4: Simplify right side
    782,327.17x = 491,916,179,234.17
  5. Step 5: Solve for x
    x = 491,916,179,234.17/782,327.17
  6. Step 6: Final answer
    x = 628,785.75

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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.