Home / 819,778.43-1,229,680.17-370,185.91

Finding the Fourth Proportional to 819,778.43, 1,229,680.17 and 370,185.91

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Solution

The fourth proportional to 819,778.43, 1,229,680.17 and 370,185.91 is: 555,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,778.43 : 1,229,680.17 = 370,185.91 : x
  2. Step 2: Convert to fraction form
    819,778.43/1,229,680.17 = 370,185.91/x
  3. Step 3: Cross multiply
    819,778.43x = 1,229,680.17 × 370,185.91
  4. Step 4: Simplify right side
    819,778.43x = 455,210,269,666.20
  5. Step 5: Solve for x
    x = 455,210,269,666.20/819,778.43
  6. Step 6: Final answer
    x = 555,284.52

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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.