Home / 547,010.20-819,932.10-209,920.60

Finding the Fourth Proportional to 547,010.20, 819,932.10 and 209,920.60

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Solution

The fourth proportional to 547,010.20, 819,932.10 and 209,920.60 is: 314,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,010.20 : 819,932.10 = 209,920.60 : x
  2. Step 2: Convert to fraction form
    547,010.20/819,932.10 = 209,920.60/x
  3. Step 3: Cross multiply
    547,010.20x = 819,932.10 × 209,920.60
  4. Step 4: Simplify right side
    547,010.20x = 172,120,638,391.26
  5. Step 5: Solve for x
    x = 172,120,638,391.26/547,010.20
  6. Step 6: Final answer
    x = 314,657.09

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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.