Home / 664,396.10-996,464.55-215,008.10

Finding the Fourth Proportional to 664,396.10, 996,464.55 and 215,008.10

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Solution

The fourth proportional to 664,396.10, 996,464.55 and 215,008.10 is: 322,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,396.10 : 996,464.55 = 215,008.10 : x
  2. Step 2: Convert to fraction form
    664,396.10/996,464.55 = 215,008.10/x
  3. Step 3: Cross multiply
    664,396.10x = 996,464.55 × 215,008.10
  4. Step 4: Simplify right side
    664,396.10x = 214,247,949,612.86
  5. Step 5: Solve for x
    x = 214,247,949,612.86/664,396.10
  6. Step 6: Final answer
    x = 322,470.21

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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.