Home / 490,013.35-676,172.20-275,111.44

Finding the Fourth Proportional to 490,013.35, 676,172.20 and 275,111.44

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Solution

The fourth proportional to 490,013.35, 676,172.20 and 275,111.44 is: 379,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,013.35 : 676,172.20 = 275,111.44 : x
  2. Step 2: Convert to fraction form
    490,013.35/676,172.20 = 275,111.44/x
  3. Step 3: Cross multiply
    490,013.35x = 676,172.20 × 275,111.44
  4. Step 4: Simplify right side
    490,013.35x = 186,022,702,873.55
  5. Step 5: Solve for x
    x = 186,022,702,873.55/490,013.35
  6. Step 6: Final answer
    x = 379,627.83

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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.