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Finding the Fourth Proportional to 490,014.95, 676,173.57 and 275,105.75

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Solution

The fourth proportional to 490,014.95, 676,173.57 and 275,105.75 is: 379,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,014.95 : 676,173.57 = 275,105.75 : x
  2. Step 2: Convert to fraction form
    490,014.95/676,173.57 = 275,105.75/x
  3. Step 3: Cross multiply
    490,014.95x = 676,173.57 × 275,105.75
  4. Step 4: Simplify right side
    490,014.95x = 186,019,237,105.03
  5. Step 5: Solve for x
    x = 186,019,237,105.03/490,014.95
  6. Step 6: Final answer
    x = 379,619.51

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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.