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Finding the Fourth Proportional to 436,013.38, 654,032.37 and 120,470.32

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Solution

The fourth proportional to 436,013.38, 654,032.37 and 120,470.32 is: 180,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,013.38 : 654,032.37 = 120,470.32 : x
  2. Step 2: Convert to fraction form
    436,013.38/654,032.37 = 120,470.32/x
  3. Step 3: Cross multiply
    436,013.38x = 654,032.37 × 120,470.32
  4. Step 4: Simplify right side
    436,013.38x = 78,791,488,904.26
  5. Step 5: Solve for x
    x = 78,791,488,904.26/436,013.38
  6. Step 6: Final answer
    x = 180,708.88

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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.