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Finding the Fourth Proportional to 526,896.78, 727,135.19 and 322,908.30

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Solution

The fourth proportional to 526,896.78, 727,135.19 and 322,908.30 is: 445,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,896.78 : 727,135.19 = 322,908.30 : x
  2. Step 2: Convert to fraction form
    526,896.78/727,135.19 = 322,908.30/x
  3. Step 3: Cross multiply
    526,896.78x = 727,135.19 × 322,908.30
  4. Step 4: Simplify right side
    526,896.78x = 234,797,986,458.54
  5. Step 5: Solve for x
    x = 234,797,986,458.54/526,896.78
  6. Step 6: Final answer
    x = 445,624.26

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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.