Home / 498,999.20-688,619.27-269,556.44

Finding the Fourth Proportional to 498,999.20, 688,619.27 and 269,556.44

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Solution

The fourth proportional to 498,999.20, 688,619.27 and 269,556.44 is: 371,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,999.20 : 688,619.27 = 269,556.44 : x
  2. Step 2: Convert to fraction form
    498,999.20/688,619.27 = 269,556.44/x
  3. Step 3: Cross multiply
    498,999.20x = 688,619.27 × 269,556.44
  4. Step 4: Simplify right side
    498,999.20x = 185,621,756,167.39
  5. Step 5: Solve for x
    x = 185,621,756,167.39/498,999.20
  6. Step 6: Final answer
    x = 371,988.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.