Home / 543,401.20-815,976.60-410,431.60

Finding the Fourth Proportional to 543,401.20, 815,976.60 and 410,431.60

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Solution

The fourth proportional to 543,401.20, 815,976.60 and 410,431.60 is: 616,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,401.20 : 815,976.60 = 410,431.60 : x
  2. Step 2: Convert to fraction form
    543,401.20/815,976.60 = 410,431.60/x
  3. Step 3: Cross multiply
    543,401.20x = 815,976.60 × 410,431.60
  4. Step 4: Simplify right side
    543,401.20x = 334,902,581,500.56
  5. Step 5: Solve for x
    x = 334,902,581,500.56/543,401.20
  6. Step 6: Final answer
    x = 616,308.14

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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.