Home / 490,016.20-676,175.29-275,107

Finding the Fourth Proportional to 490,016.20, 676,175.29 and 275,107

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Solution

The fourth proportional to 490,016.20, 676,175.29 and 275,107 is: 379,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,016.20 : 676,175.29 = 275,107 : x
  2. Step 2: Convert to fraction form
    490,016.20/676,175.29 = 275,107/x
  3. Step 3: Cross multiply
    490,016.20x = 676,175.29 × 275,107
  4. Step 4: Simplify right side
    490,016.20x = 186,020,555,506.03
  5. Step 5: Solve for x
    x = 186,020,555,506.03/490,016.20
  6. Step 6: Final answer
    x = 379,621.24

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1.5x scale

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.