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Finding the Fourth Proportional to 499,640.42, 748,000.53 and 372,122.25

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Solution

The fourth proportional to 499,640.42, 748,000.53 and 372,122.25 is: 557,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,640.42 : 748,000.53 = 372,122.25 : x
  2. Step 2: Convert to fraction form
    499,640.42/748,000.53 = 372,122.25/x
  3. Step 3: Cross multiply
    499,640.42x = 748,000.53 × 372,122.25
  4. Step 4: Simplify right side
    499,640.42x = 278,347,640,224.79
  5. Step 5: Solve for x
    x = 278,347,640,224.79/499,640.42
  6. Step 6: Final answer
    x = 557,095.93

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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.