Home / 486,436.60-729,657.34-219,885.04

Finding the Fourth Proportional to 486,436.60, 729,657.34 and 219,885.04

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Solution

The fourth proportional to 486,436.60, 729,657.34 and 219,885.04 is: 329,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,436.60 : 729,657.34 = 219,885.04 : x
  2. Step 2: Convert to fraction form
    486,436.60/729,657.34 = 219,885.04/x
  3. Step 3: Cross multiply
    486,436.60x = 729,657.34 × 219,885.04
  4. Step 4: Simplify right side
    486,436.60x = 160,440,733,392.19
  5. Step 5: Solve for x
    x = 160,440,733,392.19/486,436.60
  6. Step 6: Final answer
    x = 329,828.66

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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.