Home / 708,121.38-1,062,624.96-287,397.27

Finding the Fourth Proportional to 708,121.38, 1,062,624.96 and 287,397.27

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Solution

The fourth proportional to 708,121.38, 1,062,624.96 and 287,397.27 is: 431,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,121.38 : 1,062,624.96 = 287,397.27 : x
  2. Step 2: Convert to fraction form
    708,121.38/1,062,624.96 = 287,397.27/x
  3. Step 3: Cross multiply
    708,121.38x = 1,062,624.96 × 287,397.27
  4. Step 4: Simplify right side
    708,121.38x = 305,395,512,537.86
  5. Step 5: Solve for x
    x = 305,395,512,537.86/708,121.38
  6. Step 6: Final answer
    x = 431,275.66

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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.