Home / 814,234.02-1,221,361.42-215,190

Finding the Fourth Proportional to 814,234.02, 1,221,361.42 and 215,190

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Solution

The fourth proportional to 814,234.02, 1,221,361.42 and 215,190 is: 322,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,234.02 : 1,221,361.42 = 215,190 : x
  2. Step 2: Convert to fraction form
    814,234.02/1,221,361.42 = 215,190/x
  3. Step 3: Cross multiply
    814,234.02x = 1,221,361.42 × 215,190
  4. Step 4: Simplify right side
    814,234.02x = 262,824,764,062.27
  5. Step 5: Solve for x
    x = 262,824,764,062.27/814,234.02
  6. Step 6: Final answer
    x = 322,787.75

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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.