Home / 853,708.60-1,280,635.80-292,743.10

Finding the Fourth Proportional to 853,708.60, 1,280,635.80 and 292,743.10

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Solution

The fourth proportional to 853,708.60, 1,280,635.80 and 292,743.10 is: 439,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,708.60 : 1,280,635.80 = 292,743.10 : x
  2. Step 2: Convert to fraction form
    853,708.60/1,280,635.80 = 292,743.10/x
  3. Step 3: Cross multiply
    853,708.60x = 1,280,635.80 × 292,743.10
  4. Step 4: Simplify right side
    853,708.60x = 374,897,294,062.98
  5. Step 5: Solve for x
    x = 374,897,294,062.98/853,708.60
  6. Step 6: Final answer
    x = 439,139.65

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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.