Home / 725,548.38-1,088,691.21-326,108.70

Finding the Fourth Proportional to 725,548.38, 1,088,691.21 and 326,108.70

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Solution

The fourth proportional to 725,548.38, 1,088,691.21 and 326,108.70 is: 489,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,548.38 : 1,088,691.21 = 326,108.70 : x
  2. Step 2: Convert to fraction form
    725,548.38/1,088,691.21 = 326,108.70/x
  3. Step 3: Cross multiply
    725,548.38x = 1,088,691.21 × 326,108.70
  4. Step 4: Simplify right side
    725,548.38x = 355,031,675,194.53
  5. Step 5: Solve for x
    x = 355,031,675,194.53/725,548.38
  6. Step 6: Final answer
    x = 489,328.74

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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.