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Finding the Fourth Proportional to 488,365.96, 731,236.48 and 309,906.76

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Solution

The fourth proportional to 488,365.96, 731,236.48 and 309,906.76 is: 464,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,365.96 : 731,236.48 = 309,906.76 : x
  2. Step 2: Convert to fraction form
    488,365.96/731,236.48 = 309,906.76/x
  3. Step 3: Cross multiply
    488,365.96x = 731,236.48 × 309,906.76
  4. Step 4: Simplify right side
    488,365.96x = 226,615,128,310.61
  5. Step 5: Solve for x
    x = 226,615,128,310.61/488,365.96
  6. Step 6: Final answer
    x = 464,027.28

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1.5x scale

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.