Home / 667,916.38-1,002,203.13-312,869.02

Finding the Fourth Proportional to 667,916.38, 1,002,203.13 and 312,869.02

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Solution

The fourth proportional to 667,916.38, 1,002,203.13 and 312,869.02 is: 469,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,916.38 : 1,002,203.13 = 312,869.02 : x
  2. Step 2: Convert to fraction form
    667,916.38/1,002,203.13 = 312,869.02/x
  3. Step 3: Cross multiply
    667,916.38x = 1,002,203.13 × 312,869.02
  4. Step 4: Simplify right side
    667,916.38x = 313,558,311,124.03
  5. Step 5: Solve for x
    x = 313,558,311,124.03/667,916.38
  6. Step 6: Final answer
    x = 469,457.44

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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.