Home / 543,959.40-815,914.19-189,001.20

Finding the Fourth Proportional to 543,959.40, 815,914.19 and 189,001.20

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Solution

The fourth proportional to 543,959.40, 815,914.19 and 189,001.20 is: 283,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,959.40 : 815,914.19 = 189,001.20 : x
  2. Step 2: Convert to fraction form
    543,959.40/815,914.19 = 189,001.20/x
  3. Step 3: Cross multiply
    543,959.40x = 815,914.19 × 189,001.20
  4. Step 4: Simplify right side
    543,959.40x = 154,208,755,982.45
  5. Step 5: Solve for x
    x = 154,208,755,982.45/543,959.40
  6. Step 6: Final answer
    x = 283,493.14

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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.