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Finding the Fourth Proportional to 495,188.86, 743,059.28 and 267,479.89

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Solution

The fourth proportional to 495,188.86, 743,059.28 and 267,479.89 is: 401,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,188.86 : 743,059.28 = 267,479.89 : x
  2. Step 2: Convert to fraction form
    495,188.86/743,059.28 = 267,479.89/x
  3. Step 3: Cross multiply
    495,188.86x = 743,059.28 × 267,479.89
  4. Step 4: Simplify right side
    495,188.86x = 198,753,414,477.88
  5. Step 5: Solve for x
    x = 198,753,414,477.88/495,188.86
  6. Step 6: Final answer
    x = 401,368.91

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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.