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Finding the Fourth Proportional to 494,351.35, 682,210.24 and 290,410.86

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Solution

The fourth proportional to 494,351.35, 682,210.24 and 290,410.86 is: 400,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,351.35 : 682,210.24 = 290,410.86 : x
  2. Step 2: Convert to fraction form
    494,351.35/682,210.24 = 290,410.86/x
  3. Step 3: Cross multiply
    494,351.35x = 682,210.24 × 290,410.86
  4. Step 4: Simplify right side
    494,351.35x = 198,121,262,752.68
  5. Step 5: Solve for x
    x = 198,121,262,752.68/494,351.35
  6. Step 6: Final answer
    x = 400,770.15

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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.