Home / 765,972.75-1,056,882.18-443,663.61

Finding the Fourth Proportional to 765,972.75, 1,056,882.18 and 443,663.61

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Solution

The fourth proportional to 765,972.75, 1,056,882.18 and 443,663.61 is: 612,162.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,972.75 : 1,056,882.18 = 443,663.61 : x
  2. Step 2: Convert to fraction form
    765,972.75/1,056,882.18 = 443,663.61/x
  3. Step 3: Cross multiply
    765,972.75x = 1,056,882.18 × 443,663.61
  4. Step 4: Simplify right side
    765,972.75x = 468,900,163,323.47
  5. Step 5: Solve for x
    x = 468,900,163,323.47/765,972.75
  6. Step 6: Final answer
    x = 612,162.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.