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Finding the Fourth Proportional to 527,673.80, 728,146.50 and 298,250.66

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Solution

The fourth proportional to 527,673.80, 728,146.50 and 298,250.66 is: 411,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,673.80 : 728,146.50 = 298,250.66 : x
  2. Step 2: Convert to fraction form
    527,673.80/728,146.50 = 298,250.66/x
  3. Step 3: Cross multiply
    527,673.80x = 728,146.50 × 298,250.66
  4. Step 4: Simplify right side
    527,673.80x = 217,170,174,201.69
  5. Step 5: Solve for x
    x = 217,170,174,201.69/527,673.80
  6. Step 6: Final answer
    x = 411,561.41

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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.