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Finding the Fourth Proportional to 819,698.74, 1,229,630.14 and 251,073.28

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Solution

The fourth proportional to 819,698.74, 1,229,630.14 and 251,073.28 is: 376,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,698.74 : 1,229,630.14 = 251,073.28 : x
  2. Step 2: Convert to fraction form
    819,698.74/1,229,630.14 = 251,073.28/x
  3. Step 3: Cross multiply
    819,698.74x = 1,229,630.14 × 251,073.28
  4. Step 4: Simplify right side
    819,698.74x = 308,727,272,436.66
  5. Step 5: Solve for x
    x = 308,727,272,436.66/819,698.74
  6. Step 6: Final answer
    x = 376,635.05

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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.