Home / 1,276,690.88-1,761,912.24-703,729.76

Finding the Fourth Proportional to 1,276,690.88, 1,761,912.24 and 703,729.76

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Solution

The fourth proportional to 1,276,690.88, 1,761,912.24 and 703,729.76 is: 971,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,690.88 : 1,761,912.24 = 703,729.76 : x
  2. Step 2: Convert to fraction form
    1,276,690.88/1,761,912.24 = 703,729.76/x
  3. Step 3: Cross multiply
    1,276,690.88x = 1,761,912.24 × 703,729.76
  4. Step 4: Simplify right side
    1,276,690.88x = 1,239,910,077,796.26
  5. Step 5: Solve for x
    x = 1,239,910,077,796.26/1,276,690.88
  6. Step 6: Final answer
    x = 971,190.52

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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.