Home / 678,743.55-1,016,565.29-324,006.69

Finding the Fourth Proportional to 678,743.55, 1,016,565.29 and 324,006.69

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Solution

The fourth proportional to 678,743.55, 1,016,565.29 and 324,006.69 is: 485,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,743.55 : 1,016,565.29 = 324,006.69 : x
  2. Step 2: Convert to fraction form
    678,743.55/1,016,565.29 = 324,006.69/x
  3. Step 3: Cross multiply
    678,743.55x = 1,016,565.29 × 324,006.69
  4. Step 4: Simplify right side
    678,743.55x = 329,373,954,781.79
  5. Step 5: Solve for x
    x = 329,373,954,781.79/678,743.55
  6. Step 6: Final answer
    x = 485,270.11

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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.