Home / 1,276,218.11-1,761,192.80-703,278.78

Finding the Fourth Proportional to 1,276,218.11, 1,761,192.80 and 703,278.78

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Solution

The fourth proportional to 1,276,218.11, 1,761,192.80 and 703,278.78 is: 970,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,218.11 : 1,761,192.80 = 703,278.78 : x
  2. Step 2: Convert to fraction form
    1,276,218.11/1,761,192.80 = 703,278.78/x
  3. Step 3: Cross multiply
    1,276,218.11x = 1,761,192.80 × 703,278.78
  4. Step 4: Simplify right side
    1,276,218.11x = 1,238,609,523,728.78
  5. Step 5: Solve for x
    x = 1,238,609,523,728.78/1,276,218.11
  6. Step 6: Final answer
    x = 970,531.22

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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.