Home / 693,428.30-1,040,324.70-220,112.90

Finding the Fourth Proportional to 693,428.30, 1,040,324.70 and 220,112.90

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Solution

The fourth proportional to 693,428.30, 1,040,324.70 and 220,112.90 is: 330,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,428.30 : 1,040,324.70 = 220,112.90 : x
  2. Step 2: Convert to fraction form
    693,428.30/1,040,324.70 = 220,112.90/x
  3. Step 3: Cross multiply
    693,428.30x = 1,040,324.70 × 220,112.90
  4. Step 4: Simplify right side
    693,428.30x = 228,988,886,658.63
  5. Step 5: Solve for x
    x = 228,988,886,658.63/693,428.30
  6. Step 6: Final answer
    x = 330,227.20

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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.