Home / 782,822.43-1,080,294.96-443,356.29

Finding the Fourth Proportional to 782,822.43, 1,080,294.96 and 443,356.29

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Solution

The fourth proportional to 782,822.43, 1,080,294.96 and 443,356.29 is: 611,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,822.43 : 1,080,294.96 = 443,356.29 : x
  2. Step 2: Convert to fraction form
    782,822.43/1,080,294.96 = 443,356.29/x
  3. Step 3: Cross multiply
    782,822.43x = 1,080,294.96 × 443,356.29
  4. Step 4: Simplify right side
    782,822.43x = 478,955,565,571.30
  5. Step 5: Solve for x
    x = 478,955,565,571.30/782,822.43
  6. Step 6: Final answer
    x = 611,831.68

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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.