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Finding the Fourth Proportional to 527,540.52, 728,258.22 and 301,142.28

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Solution

The fourth proportional to 527,540.52, 728,258.22 and 301,142.28 is: 415,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,540.52 : 728,258.22 = 301,142.28 : x
  2. Step 2: Convert to fraction form
    527,540.52/728,258.22 = 301,142.28/x
  3. Step 3: Cross multiply
    527,540.52x = 728,258.22 × 301,142.28
  4. Step 4: Simplify right side
    527,540.52x = 219,309,340,799.54
  5. Step 5: Solve for x
    x = 219,309,340,799.54/527,540.52
  6. Step 6: Final answer
    x = 415,720.37

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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.