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Finding the Fourth Proportional to 491,781.60, 737,672.40 and 429,573.60

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Solution

The fourth proportional to 491,781.60, 737,672.40 and 429,573.60 is: 644,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,781.60 : 737,672.40 = 429,573.60 : x
  2. Step 2: Convert to fraction form
    491,781.60/737,672.40 = 429,573.60/x
  3. Step 3: Cross multiply
    491,781.60x = 737,672.40 × 429,573.60
  4. Step 4: Simplify right side
    491,781.60x = 316,884,588,488.64
  5. Step 5: Solve for x
    x = 316,884,588,488.64/491,781.60
  6. Step 6: Final answer
    x = 644,360.40

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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.