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Finding the Fourth Proportional to 488,573.28, 731,989.98 and 298,940.94

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Solution

The fourth proportional to 488,573.28, 731,989.98 and 298,940.94 is: 447,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,573.28 : 731,989.98 = 298,940.94 : x
  2. Step 2: Convert to fraction form
    488,573.28/731,989.98 = 298,940.94/x
  3. Step 3: Cross multiply
    488,573.28x = 731,989.98 × 298,940.94
  4. Step 4: Simplify right side
    488,573.28x = 218,821,772,691.78
  5. Step 5: Solve for x
    x = 218,821,772,691.78/488,573.28
  6. Step 6: Final answer
    x = 447,879.12

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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.