Home / 678,871.26-1,018,438.11-229,665.11

Finding the Fourth Proportional to 678,871.26, 1,018,438.11 and 229,665.11

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Solution

The fourth proportional to 678,871.26, 1,018,438.11 and 229,665.11 is: 344,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,871.26 : 1,018,438.11 = 229,665.11 : x
  2. Step 2: Convert to fraction form
    678,871.26/1,018,438.11 = 229,665.11/x
  3. Step 3: Cross multiply
    678,871.26x = 1,018,438.11 × 229,665.11
  4. Step 4: Simplify right side
    678,871.26x = 233,899,695,469.15
  5. Step 5: Solve for x
    x = 233,899,695,469.15/678,871.26
  6. Step 6: Final answer
    x = 344,542.05

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Double scale
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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.