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Finding the Fourth Proportional to 499,680.90, 749,587.03 and 263,036.57

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Solution

The fourth proportional to 499,680.90, 749,587.03 and 263,036.57 is: 394,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,680.90 : 749,587.03 = 263,036.57 : x
  2. Step 2: Convert to fraction form
    499,680.90/749,587.03 = 263,036.57/x
  3. Step 3: Cross multiply
    499,680.90x = 749,587.03 × 263,036.57
  4. Step 4: Simplify right side
    499,680.90x = 197,168,796,882.16
  5. Step 5: Solve for x
    x = 197,168,796,882.16/499,680.90
  6. Step 6: Final answer
    x = 394,589.42

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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.