Home / 1,318,691.52-1,978,077.61-454,117.16

Finding the Fourth Proportional to 1,318,691.52, 1,978,077.61 and 454,117.16

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Solution

The fourth proportional to 1,318,691.52, 1,978,077.61 and 454,117.16 is: 681,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,691.52 : 1,978,077.61 = 454,117.16 : x
  2. Step 2: Convert to fraction form
    1,318,691.52/1,978,077.61 = 454,117.16/x
  3. Step 3: Cross multiply
    1,318,691.52x = 1,978,077.61 × 454,117.16
  4. Step 4: Simplify right side
    1,318,691.52x = 898,278,986,512.79
  5. Step 5: Solve for x
    x = 898,278,986,512.79/1,318,691.52
  6. Step 6: Final answer
    x = 681,189.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.