Home / 490,171.11-676,499.57-275,311.17

Finding the Fourth Proportional to 490,171.11, 676,499.57 and 275,311.17

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Solution

The fourth proportional to 490,171.11, 676,499.57 and 275,311.17 is: 379,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,171.11 : 676,499.57 = 275,311.17 : x
  2. Step 2: Convert to fraction form
    490,171.11/676,499.57 = 275,311.17/x
  3. Step 3: Cross multiply
    490,171.11x = 676,499.57 × 275,311.17
  4. Step 4: Simplify right side
    490,171.11x = 186,247,886,744.64
  5. Step 5: Solve for x
    x = 186,247,886,744.64/490,171.11
  6. Step 6: Final answer
    x = 379,965.04

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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.