Home / 454,938.29-682,382.82-139,396.11

Finding the Fourth Proportional to 454,938.29, 682,382.82 and 139,396.11

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Solution

The fourth proportional to 454,938.29, 682,382.82 and 139,396.11 is: 209,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,938.29 : 682,382.82 = 139,396.11 : x
  2. Step 2: Convert to fraction form
    454,938.29/682,382.82 = 139,396.11/x
  3. Step 3: Cross multiply
    454,938.29x = 682,382.82 × 139,396.11
  4. Step 4: Simplify right side
    454,938.29x = 95,121,510,638.83
  5. Step 5: Solve for x
    x = 95,121,510,638.83/454,938.29
  6. Step 6: Final answer
    x = 209,086.62

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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.