Home / 1,272,080.22-1,755,512.79-699,140.70

Finding the Fourth Proportional to 1,272,080.22, 1,755,512.79 and 699,140.70

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Solution

The fourth proportional to 1,272,080.22, 1,755,512.79 and 699,140.70 is: 964,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,080.22 : 1,755,512.79 = 699,140.70 : x
  2. Step 2: Convert to fraction form
    1,272,080.22/1,755,512.79 = 699,140.70/x
  3. Step 3: Cross multiply
    1,272,080.22x = 1,755,512.79 × 699,140.70
  4. Step 4: Simplify right side
    1,272,080.22x = 1,227,350,440,859.55
  5. Step 5: Solve for x
    x = 1,227,350,440,859.55/1,272,080.22
  6. Step 6: Final answer
    x = 964,837.30

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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.