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Finding the Fourth Proportional to 363,885.30, 545,827.95 and 287,777.70

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Solution

The fourth proportional to 363,885.30, 545,827.95 and 287,777.70 is: 431,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,885.30 : 545,827.95 = 287,777.70 : x
  2. Step 2: Convert to fraction form
    363,885.30/545,827.95 = 287,777.70/x
  3. Step 3: Cross multiply
    363,885.30x = 545,827.95 × 287,777.70
  4. Step 4: Simplify right side
    363,885.30x = 157,077,112,046.72
  5. Step 5: Solve for x
    x = 157,077,112,046.72/363,885.30
  6. Step 6: Final answer
    x = 431,666.55

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Similar ratio
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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.