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Finding the Fourth Proportional to 664,342.60, 995,477.10 and 575,177.80

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Solution

The fourth proportional to 664,342.60, 995,477.10 and 575,177.80 is: 861,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,342.60 : 995,477.10 = 575,177.80 : x
  2. Step 2: Convert to fraction form
    664,342.60/995,477.10 = 575,177.80/x
  3. Step 3: Cross multiply
    664,342.60x = 995,477.10 × 575,177.80
  4. Step 4: Simplify right side
    664,342.60x = 572,576,328,328.38
  5. Step 5: Solve for x
    x = 572,576,328,328.38/664,342.60
  6. Step 6: Final answer
    x = 861,869.05

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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.