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Finding the Fourth Proportional to 491,433.28, 737,255.16 and 278,301.94

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Solution

The fourth proportional to 491,433.28, 737,255.16 and 278,301.94 is: 417,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,433.28 : 737,255.16 = 278,301.94 : x
  2. Step 2: Convert to fraction form
    491,433.28/737,255.16 = 278,301.94/x
  3. Step 3: Cross multiply
    491,433.28x = 737,255.16 × 278,301.94
  4. Step 4: Simplify right side
    491,433.28x = 205,179,539,459.87
  5. Step 5: Solve for x
    x = 205,179,539,459.87/491,433.28
  6. Step 6: Final answer
    x = 417,512.51

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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.