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Finding the Fourth Proportional to 819,396.56, 1,229,275.28 and 250,782

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Solution

The fourth proportional to 819,396.56, 1,229,275.28 and 250,782 is: 376,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,396.56 : 1,229,275.28 = 250,782 : x
  2. Step 2: Convert to fraction form
    819,396.56/1,229,275.28 = 250,782/x
  3. Step 3: Cross multiply
    819,396.56x = 1,229,275.28 × 250,782
  4. Step 4: Simplify right side
    819,396.56x = 308,280,113,268.96
  5. Step 5: Solve for x
    x = 308,280,113,268.96/819,396.56
  6. Step 6: Final answer
    x = 376,228.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.