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Finding the Fourth Proportional to 447,777.92, 671,713.97 and 258,233.97

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Solution

The fourth proportional to 447,777.92, 671,713.97 and 258,233.97 is: 387,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,777.92 : 671,713.97 = 258,233.97 : x
  2. Step 2: Convert to fraction form
    447,777.92/671,713.97 = 258,233.97/x
  3. Step 3: Cross multiply
    447,777.92x = 671,713.97 × 258,233.97
  4. Step 4: Simplify right side
    447,777.92x = 173,459,366,405.32
  5. Step 5: Solve for x
    x = 173,459,366,405.32/447,777.92
  6. Step 6: Final answer
    x = 387,378.11

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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.