Home / 1,254,781.70-1,731,609.12-681,821.87

Finding the Fourth Proportional to 1,254,781.70, 1,731,609.12 and 681,821.87

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Solution

The fourth proportional to 1,254,781.70, 1,731,609.12 and 681,821.87 is: 940,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,781.70 : 1,731,609.12 = 681,821.87 : x
  2. Step 2: Convert to fraction form
    1,254,781.70/1,731,609.12 = 681,821.87/x
  3. Step 3: Cross multiply
    1,254,781.70x = 1,731,609.12 × 681,821.87
  4. Step 4: Simplify right side
    1,254,781.70x = 1,180,648,972,636.48
  5. Step 5: Solve for x
    x = 1,180,648,972,636.48/1,254,781.70
  6. Step 6: Final answer
    x = 940,919.82

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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.