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Finding the Fourth Proportional to 526,478.63, 726,540.56 and 284,761.22

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Solution

The fourth proportional to 526,478.63, 726,540.56 and 284,761.22 is: 392,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,478.63 : 726,540.56 = 284,761.22 : x
  2. Step 2: Convert to fraction form
    526,478.63/726,540.56 = 284,761.22/x
  3. Step 3: Cross multiply
    526,478.63x = 726,540.56 × 284,761.22
  4. Step 4: Simplify right side
    526,478.63x = 206,890,571,188.57
  5. Step 5: Solve for x
    x = 206,890,571,188.57/526,478.63
  6. Step 6: Final answer
    x = 392,970.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.