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Finding the Fourth Proportional to 488,309.60, 731,427.60 and 405,365.60

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Solution

The fourth proportional to 488,309.60, 731,427.60 and 405,365.60 is: 607,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,309.60 : 731,427.60 = 405,365.60 : x
  2. Step 2: Convert to fraction form
    488,309.60/731,427.60 = 405,365.60/x
  3. Step 3: Cross multiply
    488,309.60x = 731,427.60 × 405,365.60
  4. Step 4: Simplify right side
    488,309.60x = 296,495,587,930.56
  5. Step 5: Solve for x
    x = 296,495,587,930.56/488,309.60
  6. Step 6: Final answer
    x = 607,187.71

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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.