Home / 853,906.20-1,280,513.70-292,651.80

Finding the Fourth Proportional to 853,906.20, 1,280,513.70 and 292,651.80

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Solution

The fourth proportional to 853,906.20, 1,280,513.70 and 292,651.80 is: 438,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,906.20 : 1,280,513.70 = 292,651.80 : x
  2. Step 2: Convert to fraction form
    853,906.20/1,280,513.70 = 292,651.80/x
  3. Step 3: Cross multiply
    853,906.20x = 1,280,513.70 × 292,651.80
  4. Step 4: Simplify right side
    853,906.20x = 374,744,639,229.66
  5. Step 5: Solve for x
    x = 374,744,639,229.66/853,906.20
  6. Step 6: Final answer
    x = 438,859.26

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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.