Home / 547,190.40-820,348.20-231,387.60

Finding the Fourth Proportional to 547,190.40, 820,348.20 and 231,387.60

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Solution

The fourth proportional to 547,190.40, 820,348.20 and 231,387.60 is: 346,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,190.40 : 820,348.20 = 231,387.60 : x
  2. Step 2: Convert to fraction form
    547,190.40/820,348.20 = 231,387.60/x
  3. Step 3: Cross multiply
    547,190.40x = 820,348.20 × 231,387.60
  4. Step 4: Simplify right side
    547,190.40x = 189,818,401,162.32
  5. Step 5: Solve for x
    x = 189,818,401,162.32/547,190.40
  6. Step 6: Final answer
    x = 346,896.44

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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.