Home / 664,462.70-996,839.85-215,107.10

Finding the Fourth Proportional to 664,462.70, 996,839.85 and 215,107.10

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Solution

The fourth proportional to 664,462.70, 996,839.85 and 215,107.10 is: 322,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,462.70 : 996,839.85 = 215,107.10 : x
  2. Step 2: Convert to fraction form
    664,462.70/996,839.85 = 215,107.10/x
  3. Step 3: Cross multiply
    664,462.70x = 996,839.85 × 215,107.10
  4. Step 4: Simplify right side
    664,462.70x = 214,427,329,297.94
  5. Step 5: Solve for x
    x = 214,427,329,297.94/664,462.70
  6. Step 6: Final answer
    x = 322,707.85

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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.