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Finding the Fourth Proportional to 528,295.80, 791,044.02 and 278,452.92

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Solution

The fourth proportional to 528,295.80, 791,044.02 and 278,452.92 is: 416,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,295.80 : 791,044.02 = 278,452.92 : x
  2. Step 2: Convert to fraction form
    528,295.80/791,044.02 = 278,452.92/x
  3. Step 3: Cross multiply
    528,295.80x = 791,044.02 × 278,452.92
  4. Step 4: Simplify right side
    528,295.80x = 220,268,517,217.54
  5. Step 5: Solve for x
    x = 220,268,517,217.54/528,295.80
  6. Step 6: Final answer
    x = 416,941.64

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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.