Home / 548,121.28-756,410.40-306,414.04

Finding the Fourth Proportional to 548,121.28, 756,410.40 and 306,414.04

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Solution

The fourth proportional to 548,121.28, 756,410.40 and 306,414.04 is: 422,853.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,121.28 : 756,410.40 = 306,414.04 : x
  2. Step 2: Convert to fraction form
    548,121.28/756,410.40 = 306,414.04/x
  3. Step 3: Cross multiply
    548,121.28x = 756,410.40 × 306,414.04
  4. Step 4: Simplify right side
    548,121.28x = 231,774,766,089.26
  5. Step 5: Solve for x
    x = 231,774,766,089.26/548,121.28
  6. Step 6: Final answer
    x = 422,853.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.