Home / 494,521.20-682,246.08-322,641.36

Finding the Fourth Proportional to 494,521.20, 682,246.08 and 322,641.36

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Solution

The fourth proportional to 494,521.20, 682,246.08 and 322,641.36 is: 445,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,521.20 : 682,246.08 = 322,641.36 : x
  2. Step 2: Convert to fraction form
    494,521.20/682,246.08 = 322,641.36/x
  3. Step 3: Cross multiply
    494,521.20x = 682,246.08 × 322,641.36
  4. Step 4: Simplify right side
    494,521.20x = 220,120,803,105.87
  5. Step 5: Solve for x
    x = 220,120,803,105.87/494,521.20
  6. Step 6: Final answer
    x = 445,119.04

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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.