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Finding the Fourth Proportional to 490,015.35, 676,174.95 and 275,113.44

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Solution

The fourth proportional to 490,015.35, 676,174.95 and 275,113.44 is: 379,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,015.35 : 676,174.95 = 275,113.44 : x
  2. Step 2: Convert to fraction form
    490,015.35/676,174.95 = 275,113.44/x
  3. Step 3: Cross multiply
    490,015.35x = 676,174.95 × 275,113.44
  4. Step 4: Simplify right side
    490,015.35x = 186,024,816,536.33
  5. Step 5: Solve for x
    x = 186,024,816,536.33/490,015.35
  6. Step 6: Final answer
    x = 379,630.59

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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.