Home / 1,276,534.72-1,761,719.20-703,676.80

Finding the Fourth Proportional to 1,276,534.72, 1,761,719.20 and 703,676.80

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Solution

The fourth proportional to 1,276,534.72, 1,761,719.20 and 703,676.80 is: 971,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,534.72 : 1,761,719.20 = 703,676.80 : x
  2. Step 2: Convert to fraction form
    1,276,534.72/1,761,719.20 = 703,676.80/x
  3. Step 3: Cross multiply
    1,276,534.72x = 1,761,719.20 × 703,676.80
  4. Step 4: Simplify right side
    1,276,534.72x = 1,239,680,929,154.56
  5. Step 5: Solve for x
    x = 1,239,680,929,154.56/1,276,534.72
  6. Step 6: Final answer
    x = 971,129.82

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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.