Home / 1,276,538.72-1,761,724.72-703,680.80

Finding the Fourth Proportional to 1,276,538.72, 1,761,724.72 and 703,680.80

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Solution

The fourth proportional to 1,276,538.72, 1,761,724.72 and 703,680.80 is: 971,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,538.72 : 1,761,724.72 = 703,680.80 : x
  2. Step 2: Convert to fraction form
    1,276,538.72/1,761,724.72 = 703,680.80/x
  3. Step 3: Cross multiply
    1,276,538.72x = 1,761,724.72 × 703,680.80
  4. Step 4: Simplify right side
    1,276,538.72x = 1,239,691,860,349.38
  5. Step 5: Solve for x
    x = 1,239,691,860,349.38/1,276,538.72
  6. Step 6: Final answer
    x = 971,135.34

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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.