Home / 684,899.20-1,028,515.20-449,286.40

Finding the Fourth Proportional to 684,899.20, 1,028,515.20 and 449,286.40

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Solution

The fourth proportional to 684,899.20, 1,028,515.20 and 449,286.40 is: 674,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,899.20 : 1,028,515.20 = 449,286.40 : x
  2. Step 2: Convert to fraction form
    684,899.20/1,028,515.20 = 449,286.40/x
  3. Step 3: Cross multiply
    684,899.20x = 1,028,515.20 × 449,286.40
  4. Step 4: Simplify right side
    684,899.20x = 462,097,891,553.28
  5. Step 5: Solve for x
    x = 462,097,891,553.28/684,899.20
  6. Step 6: Final answer
    x = 674,694.75

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