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Finding the Fourth Proportional to 491,835.60, 737,753.40 and 292,381.20

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Solution

The fourth proportional to 491,835.60, 737,753.40 and 292,381.20 is: 438,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,835.60 : 737,753.40 = 292,381.20 : x
  2. Step 2: Convert to fraction form
    491,835.60/737,753.40 = 292,381.20/x
  3. Step 3: Cross multiply
    491,835.60x = 737,753.40 × 292,381.20
  4. Step 4: Simplify right side
    491,835.60x = 215,705,224,396.08
  5. Step 5: Solve for x
    x = 215,705,224,396.08/491,835.60
  6. Step 6: Final answer
    x = 438,571.80

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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.