Home / 664,716.13-996,865.05-215,332.74

Finding the Fourth Proportional to 664,716.13, 996,865.05 and 215,332.74

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Solution

The fourth proportional to 664,716.13, 996,865.05 and 215,332.74 is: 322,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,716.13 : 996,865.05 = 215,332.74 : x
  2. Step 2: Convert to fraction form
    664,716.13/996,865.05 = 215,332.74/x
  3. Step 3: Cross multiply
    664,716.13x = 996,865.05 × 215,332.74
  4. Step 4: Simplify right side
    664,716.13x = 214,657,682,626.74
  5. Step 5: Solve for x
    x = 214,657,682,626.74/664,716.13
  6. Step 6: Final answer
    x = 322,931.36

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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.