Home / 609,742.05-914,243.72-272,719.88

Finding the Fourth Proportional to 609,742.05, 914,243.72 and 272,719.88

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Solution

The fourth proportional to 609,742.05, 914,243.72 and 272,719.88 is: 408,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,742.05 : 914,243.72 = 272,719.88 : x
  2. Step 2: Convert to fraction form
    609,742.05/914,243.72 = 272,719.88/x
  3. Step 3: Cross multiply
    609,742.05x = 914,243.72 × 272,719.88
  4. Step 4: Simplify right side
    609,742.05x = 249,332,438,531.16
  5. Step 5: Solve for x
    x = 249,332,438,531.16/609,742.05
  6. Step 6: Final answer
    x = 408,914.62

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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.