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Finding the Fourth Proportional to 490,250.34, 676,608.66 and 275,390.34

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Solution

The fourth proportional to 490,250.34, 676,608.66 and 275,390.34 is: 380,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,250.34 : 676,608.66 = 275,390.34 : x
  2. Step 2: Convert to fraction form
    490,250.34/676,608.66 = 275,390.34/x
  3. Step 3: Cross multiply
    490,250.34x = 676,608.66 × 275,390.34
  4. Step 4: Simplify right side
    490,250.34x = 186,331,488,924.34
  5. Step 5: Solve for x
    x = 186,331,488,924.34/490,250.34
  6. Step 6: Final answer
    x = 380,074.17

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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.