Home / 830,912.80-1,246,369.20-269,947.30

Finding the Fourth Proportional to 830,912.80, 1,246,369.20 and 269,947.30

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Solution

The fourth proportional to 830,912.80, 1,246,369.20 and 269,947.30 is: 404,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,912.80 : 1,246,369.20 = 269,947.30 : x
  2. Step 2: Convert to fraction form
    830,912.80/1,246,369.20 = 269,947.30/x
  3. Step 3: Cross multiply
    830,912.80x = 1,246,369.20 × 269,947.30
  4. Step 4: Simplify right side
    830,912.80x = 336,454,000,343.16
  5. Step 5: Solve for x
    x = 336,454,000,343.16/830,912.80
  6. Step 6: Final answer
    x = 404,920.95

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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.