Home / 1,279,087.90-1,765,095.02-706,115.78

Finding the Fourth Proportional to 1,279,087.90, 1,765,095.02 and 706,115.78

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Solution

The fourth proportional to 1,279,087.90, 1,765,095.02 and 706,115.78 is: 974,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,087.90 : 1,765,095.02 = 706,115.78 : x
  2. Step 2: Convert to fraction form
    1,279,087.90/1,765,095.02 = 706,115.78/x
  3. Step 3: Cross multiply
    1,279,087.90x = 1,765,095.02 × 706,115.78
  4. Step 4: Simplify right side
    1,279,087.90x = 1,246,361,446,821.42
  5. Step 5: Solve for x
    x = 1,246,361,446,821.42/1,279,087.90
  6. Step 6: Final answer
    x = 974,414.23

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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.