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Finding the Fourth Proportional to 1,254,781.92, 1,731,610.02 and 681,822.09

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Solution

The fourth proportional to 1,254,781.92, 1,731,610.02 and 681,822.09 is: 940,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,781.92 : 1,731,610.02 = 681,822.09 : x
  2. Step 2: Convert to fraction form
    1,254,781.92/1,731,610.02 = 681,822.09/x
  3. Step 3: Cross multiply
    1,254,781.92x = 1,731,610.02 × 681,822.09
  4. Step 4: Simplify right side
    1,254,781.92x = 1,180,649,962,901.34
  5. Step 5: Solve for x
    x = 1,180,649,962,901.34/1,254,781.92
  6. Step 6: Final answer
    x = 940,920.45

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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.