Home / 455,015.10-682,522.65-449,110.20

Finding the Fourth Proportional to 455,015.10, 682,522.65 and 449,110.20

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Solution

The fourth proportional to 455,015.10, 682,522.65 and 449,110.20 is: 673,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,015.10 : 682,522.65 = 449,110.20 : x
  2. Step 2: Convert to fraction form
    455,015.10/682,522.65 = 449,110.20/x
  3. Step 3: Cross multiply
    455,015.10x = 682,522.65 × 449,110.20
  4. Step 4: Simplify right side
    455,015.10x = 306,527,883,846.03
  5. Step 5: Solve for x
    x = 306,527,883,846.03/455,015.10
  6. Step 6: Final answer
    x = 673,665.30

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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.