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Finding the Fourth Proportional to 527,995.64, 728,629.56 and 298,597.98

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Solution

The fourth proportional to 527,995.64, 728,629.56 and 298,597.98 is: 412,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,995.64 : 728,629.56 = 298,597.98 : x
  2. Step 2: Convert to fraction form
    527,995.64/728,629.56 = 298,597.98/x
  3. Step 3: Cross multiply
    527,995.64x = 728,629.56 × 298,597.98
  4. Step 4: Simplify right side
    527,995.64x = 217,567,314,784.29
  5. Step 5: Solve for x
    x = 217,567,314,784.29/527,995.64
  6. Step 6: Final answer
    x = 412,062.71

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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.