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Finding the Fourth Proportional to 490,286.14, 676,006.22 and 354,102.46

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Solution

The fourth proportional to 490,286.14, 676,006.22 and 354,102.46 is: 488,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,286.14 : 676,006.22 = 354,102.46 : x
  2. Step 2: Convert to fraction form
    490,286.14/676,006.22 = 354,102.46/x
  3. Step 3: Cross multiply
    490,286.14x = 676,006.22 × 354,102.46
  4. Step 4: Simplify right side
    490,286.14x = 239,375,465,477.30
  5. Step 5: Solve for x
    x = 239,375,465,477.30/490,286.14
  6. Step 6: Final answer
    x = 488,236.25

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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.