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Finding the Fourth Proportional to 527,884.98, 728,472.33 and 298,438.80

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Solution

The fourth proportional to 527,884.98, 728,472.33 and 298,438.80 is: 411,840.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,884.98 : 728,472.33 = 298,438.80 : x
  2. Step 2: Convert to fraction form
    527,884.98/728,472.33 = 298,438.80/x
  3. Step 3: Cross multiply
    527,884.98x = 728,472.33 × 298,438.80
  4. Step 4: Simplify right side
    527,884.98x = 217,404,407,998.40
  5. Step 5: Solve for x
    x = 217,404,407,998.40/527,884.98
  6. Step 6: Final answer
    x = 411,840.49

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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.