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Finding the Fourth Proportional to 491,887.60, 737,831.55 and 379,731.55

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Solution

The fourth proportional to 491,887.60, 737,831.55 and 379,731.55 is: 569,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,887.60 : 737,831.55 = 379,731.55 : x
  2. Step 2: Convert to fraction form
    491,887.60/737,831.55 = 379,731.55/x
  3. Step 3: Cross multiply
    491,887.60x = 737,831.55 × 379,731.55
  4. Step 4: Simplify right side
    491,887.60x = 280,177,918,120.40
  5. Step 5: Solve for x
    x = 280,177,918,120.40/491,887.60
  6. Step 6: Final answer
    x = 569,597.44

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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.