Home / 1,123,216.80-1,684,825.20-449,620.80

Finding the Fourth Proportional to 1,123,216.80, 1,684,825.20 and 449,620.80

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Solution

The fourth proportional to 1,123,216.80, 1,684,825.20 and 449,620.80 is: 674,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,216.80 : 1,684,825.20 = 449,620.80 : x
  2. Step 2: Convert to fraction form
    1,123,216.80/1,684,825.20 = 449,620.80/x
  3. Step 3: Cross multiply
    1,123,216.80x = 1,684,825.20 × 449,620.80
  4. Step 4: Simplify right side
    1,123,216.80x = 757,532,454,284.16
  5. Step 5: Solve for x
    x = 757,532,454,284.16/1,123,216.80
  6. Step 6: Final answer
    x = 674,431.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.