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Finding the Fourth Proportional to 871,587.52, 1,307,447.52 and 338,879.68

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Solution

The fourth proportional to 871,587.52, 1,307,447.52 and 338,879.68 is: 508,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,587.52 : 1,307,447.52 = 338,879.68 : x
  2. Step 2: Convert to fraction form
    871,587.52/1,307,447.52 = 338,879.68/x
  3. Step 3: Cross multiply
    871,587.52x = 1,307,447.52 × 338,879.68
  4. Step 4: Simplify right side
    871,587.52x = 443,067,397,194.39
  5. Step 5: Solve for x
    x = 443,067,397,194.39/871,587.52
  6. Step 6: Final answer
    x = 508,345.27

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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.