Home / 543,622.20-815,433.30-144,324.60

Finding the Fourth Proportional to 543,622.20, 815,433.30 and 144,324.60

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Solution

The fourth proportional to 543,622.20, 815,433.30 and 144,324.60 is: 216,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,622.20 : 815,433.30 = 144,324.60 : x
  2. Step 2: Convert to fraction form
    543,622.20/815,433.30 = 144,324.60/x
  3. Step 3: Cross multiply
    543,622.20x = 815,433.30 × 144,324.60
  4. Step 4: Simplify right side
    543,622.20x = 117,687,084,849.18
  5. Step 5: Solve for x
    x = 117,687,084,849.18/543,622.20
  6. Step 6: Final answer
    x = 216,486.90

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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.