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Finding the Fourth Proportional to 527,999.42, 728,634.73 and 298,601.75

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Solution

The fourth proportional to 527,999.42, 728,634.73 and 298,601.75 is: 412,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.42 : 728,634.73 = 298,601.75 : x
  2. Step 2: Convert to fraction form
    527,999.42/728,634.73 = 298,601.75/x
  3. Step 3: Cross multiply
    527,999.42x = 728,634.73 × 298,601.75
  4. Step 4: Simplify right side
    527,999.42x = 217,571,600,352.60
  5. Step 5: Solve for x
    x = 217,571,600,352.60/527,999.42
  6. Step 6: Final answer
    x = 412,067.88

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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.