Home / 819,817.35-1,229,142.83-314,182.95

Finding the Fourth Proportional to 819,817.35, 1,229,142.83 and 314,182.95

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Solution

The fourth proportional to 819,817.35, 1,229,142.83 and 314,182.95 is: 471,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,817.35 : 1,229,142.83 = 314,182.95 : x
  2. Step 2: Convert to fraction form
    819,817.35/1,229,142.83 = 314,182.95/x
  3. Step 3: Cross multiply
    819,817.35x = 1,229,142.83 × 314,182.95
  4. Step 4: Simplify right side
    819,817.35x = 386,175,718,729.83
  5. Step 5: Solve for x
    x = 386,175,718,729.83/819,817.35
  6. Step 6: Final answer
    x = 471,050.92

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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.