Home / 486,719.97-729,956.72-145,084.56

Finding the Fourth Proportional to 486,719.97, 729,956.72 and 145,084.56

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Solution

The fourth proportional to 486,719.97, 729,956.72 and 145,084.56 is: 217,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,719.97 : 729,956.72 = 145,084.56 : x
  2. Step 2: Convert to fraction form
    486,719.97/729,956.72 = 145,084.56/x
  3. Step 3: Cross multiply
    486,719.97x = 729,956.72 × 145,084.56
  4. Step 4: Simplify right side
    486,719.97x = 105,905,449,540.24
  5. Step 5: Solve for x
    x = 105,905,449,540.24/486,719.97
  6. Step 6: Final answer
    x = 217,590.11

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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.