Home / 880,414.20-1,320,621.30-820,927.80

Finding the Fourth Proportional to 880,414.20, 1,320,621.30 and 820,927.80

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Solution

The fourth proportional to 880,414.20, 1,320,621.30 and 820,927.80 is: 1,231,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,414.20 : 1,320,621.30 = 820,927.80 : x
  2. Step 2: Convert to fraction form
    880,414.20/1,320,621.30 = 820,927.80/x
  3. Step 3: Cross multiply
    880,414.20x = 1,320,621.30 × 820,927.80
  4. Step 4: Simplify right side
    880,414.20x = 1,084,134,738,442.14
  5. Step 5: Solve for x
    x = 1,084,134,738,442.14/880,414.20
  6. Step 6: Final answer
    x = 1,231,391.70

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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.