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Finding the Fourth Proportional to 480,375.26, 720,536.90 and 243,711.83

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Solution

The fourth proportional to 480,375.26, 720,536.90 and 243,711.83 is: 365,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,375.26 : 720,536.90 = 243,711.83 : x
  2. Step 2: Convert to fraction form
    480,375.26/720,536.90 = 243,711.83/x
  3. Step 3: Cross multiply
    480,375.26x = 720,536.90 × 243,711.83
  4. Step 4: Simplify right side
    480,375.26x = 175,603,361,660.28
  5. Step 5: Solve for x
    x = 175,603,361,660.28/480,375.26
  6. Step 6: Final answer
    x = 365,554.55

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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.