Home / 1,276,147.70-1,761,162.27-703,187.72

Finding the Fourth Proportional to 1,276,147.70, 1,761,162.27 and 703,187.72

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Solution

The fourth proportional to 1,276,147.70, 1,761,162.27 and 703,187.72 is: 970,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,147.70 : 1,761,162.27 = 703,187.72 : x
  2. Step 2: Convert to fraction form
    1,276,147.70/1,761,162.27 = 703,187.72/x
  3. Step 3: Cross multiply
    1,276,147.70x = 1,761,162.27 × 703,187.72
  4. Step 4: Simplify right side
    1,276,147.70x = 1,238,427,681,191.32
  5. Step 5: Solve for x
    x = 1,238,427,681,191.32/1,276,147.70
  6. Step 6: Final answer
    x = 970,442.28

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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.