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Finding the Fourth Proportional to 526,729.88, 726,884.89 and 285,016.73

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Solution

The fourth proportional to 526,729.88, 726,884.89 and 285,016.73 is: 393,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,729.88 : 726,884.89 = 285,016.73 : x
  2. Step 2: Convert to fraction form
    526,729.88/726,884.89 = 285,016.73/x
  3. Step 3: Cross multiply
    526,729.88x = 726,884.89 × 285,016.73
  4. Step 4: Simplify right side
    526,729.88x = 207,174,353,009.13
  5. Step 5: Solve for x
    x = 207,174,353,009.13/526,729.88
  6. Step 6: Final answer
    x = 393,321.82

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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.