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Finding the Fourth Proportional to 861,609, 1,292,413.56 and 230,506.44

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Solution

The fourth proportional to 861,609, 1,292,413.56 and 230,506.44 is: 345,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,609 : 1,292,413.56 = 230,506.44 : x
  2. Step 2: Convert to fraction form
    861,609/1,292,413.56 = 230,506.44/x
  3. Step 3: Cross multiply
    861,609x = 1,292,413.56 × 230,506.44
  4. Step 4: Simplify right side
    861,609x = 297,909,648,723.33
  5. Step 5: Solve for x
    x = 297,909,648,723.33/861,609
  6. Step 6: Final answer
    x = 345,759.68

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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.