Home / 674,399.52-1,012,098.32-319,414.40

Finding the Fourth Proportional to 674,399.52, 1,012,098.32 and 319,414.40

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Solution

The fourth proportional to 674,399.52, 1,012,098.32 and 319,414.40 is: 479,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,399.52 : 1,012,098.32 = 319,414.40 : x
  2. Step 2: Convert to fraction form
    674,399.52/1,012,098.32 = 319,414.40/x
  3. Step 3: Cross multiply
    674,399.52x = 1,012,098.32 × 319,414.40
  4. Step 4: Simplify right side
    674,399.52x = 323,278,777,623.81
  5. Step 5: Solve for x
    x = 323,278,777,623.81/674,399.52
  6. Step 6: Final answer
    x = 479,357.96

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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.