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Finding the Fourth Proportional to 664,345.60, 995,481.60 and 575,180.80

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Solution

The fourth proportional to 664,345.60, 995,481.60 and 575,180.80 is: 861,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,345.60 : 995,481.60 = 575,180.80 : x
  2. Step 2: Convert to fraction form
    664,345.60/995,481.60 = 575,180.80/x
  3. Step 3: Cross multiply
    664,345.60x = 995,481.60 × 575,180.80
  4. Step 4: Simplify right side
    664,345.60x = 572,581,903,073.28
  5. Step 5: Solve for x
    x = 572,581,903,073.28/664,345.60
  6. Step 6: Final answer
    x = 861,873.55

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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.