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Finding the Fourth Proportional to 1,331,120.04, 1,836,945.72 and 727,508.04

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Solution

The fourth proportional to 1,331,120.04, 1,836,945.72 and 727,508.04 is: 1,003,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,120.04 : 1,836,945.72 = 727,508.04 : x
  2. Step 2: Convert to fraction form
    1,331,120.04/1,836,945.72 = 727,508.04/x
  3. Step 3: Cross multiply
    1,331,120.04x = 1,836,945.72 × 727,508.04
  4. Step 4: Simplify right side
    1,331,120.04x = 1,336,392,780,343.59
  5. Step 5: Solve for x
    x = 1,336,392,780,343.59/1,331,120.04
  6. Step 6: Final answer
    x = 1,003,961.13

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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.