Home / 819,578.27-1,229,101.34-272,323.70

Finding the Fourth Proportional to 819,578.27, 1,229,101.34 and 272,323.70

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Solution

The fourth proportional to 819,578.27, 1,229,101.34 and 272,323.70 is: 408,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,578.27 : 1,229,101.34 = 272,323.70 : x
  2. Step 2: Convert to fraction form
    819,578.27/1,229,101.34 = 272,323.70/x
  3. Step 3: Cross multiply
    819,578.27x = 1,229,101.34 × 272,323.70
  4. Step 4: Simplify right side
    819,578.27x = 334,713,417,076.63
  5. Step 5: Solve for x
    x = 334,713,417,076.63/819,578.27
  6. Step 6: Final answer
    x = 408,397.14

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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.