Home / 987,046.32-1,362,128.34-534,337.32

Finding the Fourth Proportional to 987,046.32, 1,362,128.34 and 534,337.32

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Solution

The fourth proportional to 987,046.32, 1,362,128.34 and 534,337.32 is: 737,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,046.32 : 1,362,128.34 = 534,337.32 : x
  2. Step 2: Convert to fraction form
    987,046.32/1,362,128.34 = 534,337.32/x
  3. Step 3: Cross multiply
    987,046.32x = 1,362,128.34 × 534,337.32
  4. Step 4: Simplify right side
    987,046.32x = 727,836,006,691.65
  5. Step 5: Solve for x
    x = 727,836,006,691.65/987,046.32
  6. Step 6: Final answer
    x = 737,387.89

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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.