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Finding the Fourth Proportional to 526,438.97, 726,485.77 and 284,721.55

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Solution

The fourth proportional to 526,438.97, 726,485.77 and 284,721.55 is: 392,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,438.97 : 726,485.77 = 284,721.55 : x
  2. Step 2: Convert to fraction form
    526,438.97/726,485.77 = 284,721.55/x
  3. Step 3: Cross multiply
    526,438.97x = 726,485.77 × 284,721.55
  4. Step 4: Simplify right side
    526,438.97x = 206,846,151,959.33
  5. Step 5: Solve for x
    x = 206,846,151,959.33/526,438.97
  6. Step 6: Final answer
    x = 392,915.73

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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.