Home / 664,965.75-997,588.73-215,651.58

Finding the Fourth Proportional to 664,965.75, 997,588.73 and 215,651.58

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Solution

The fourth proportional to 664,965.75, 997,588.73 and 215,651.58 is: 323,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,965.75 : 997,588.73 = 215,651.58 : x
  2. Step 2: Convert to fraction form
    664,965.75/997,588.73 = 215,651.58/x
  3. Step 3: Cross multiply
    664,965.75x = 997,588.73 × 215,651.58
  4. Step 4: Simplify right side
    664,965.75x = 215,131,586,522.55
  5. Step 5: Solve for x
    x = 215,131,586,522.55/664,965.75
  6. Step 6: Final answer
    x = 323,522.81

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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.