Home / 1,276,146.70-1,761,160.89-703,186.72

Finding the Fourth Proportional to 1,276,146.70, 1,761,160.89 and 703,186.72

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Solution

The fourth proportional to 1,276,146.70, 1,761,160.89 and 703,186.72 is: 970,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,146.70 : 1,761,160.89 = 703,186.72 : x
  2. Step 2: Convert to fraction form
    1,276,146.70/1,761,160.89 = 703,186.72/x
  3. Step 3: Cross multiply
    1,276,146.70x = 1,761,160.89 × 703,186.72
  4. Step 4: Simplify right side
    1,276,146.70x = 1,238,424,949,631.38
  5. Step 5: Solve for x
    x = 1,238,424,949,631.38/1,276,146.70
  6. Step 6: Final answer
    x = 970,440.90

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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.