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Finding the Fourth Proportional to 659,257.74, 988,231.92 and 374,358.61

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Solution

The fourth proportional to 659,257.74, 988,231.92 and 374,358.61 is: 561,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,257.74 : 988,231.92 = 374,358.61 : x
  2. Step 2: Convert to fraction form
    659,257.74/988,231.92 = 374,358.61/x
  3. Step 3: Cross multiply
    659,257.74x = 988,231.92 × 374,358.61
  4. Step 4: Simplify right side
    659,257.74x = 369,953,130,755.49
  5. Step 5: Solve for x
    x = 369,953,130,755.49/659,257.74
  6. Step 6: Final answer
    x = 561,166.16

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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.