Home / 485,911.14-729,077.22-261,009.18

Finding the Fourth Proportional to 485,911.14, 729,077.22 and 261,009.18

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Solution

The fourth proportional to 485,911.14, 729,077.22 and 261,009.18 is: 391,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,911.14 : 729,077.22 = 261,009.18 : x
  2. Step 2: Convert to fraction form
    485,911.14/729,077.22 = 261,009.18/x
  3. Step 3: Cross multiply
    485,911.14x = 729,077.22 × 261,009.18
  4. Step 4: Simplify right side
    485,911.14x = 190,295,847,348.88
  5. Step 5: Solve for x
    x = 190,295,847,348.88/485,911.14
  6. Step 6: Final answer
    x = 391,626.85

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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.