Home / 664,288.38-996,590.75-215,009.33

Finding the Fourth Proportional to 664,288.38, 996,590.75 and 215,009.33

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Solution

The fourth proportional to 664,288.38, 996,590.75 and 215,009.33 is: 322,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288.38 : 996,590.75 = 215,009.33 : x
  2. Step 2: Convert to fraction form
    664,288.38/996,590.75 = 215,009.33/x
  3. Step 3: Cross multiply
    664,288.38x = 996,590.75 × 215,009.33
  4. Step 4: Simplify right side
    664,288.38x = 214,276,309,441.70
  5. Step 5: Solve for x
    x = 214,276,309,441.70/664,288.38
  6. Step 6: Final answer
    x = 322,565.19

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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.