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Finding the Fourth Proportional to 500,850.39, 691,049.55 and 296,949.09

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Solution

The fourth proportional to 500,850.39, 691,049.55 and 296,949.09 is: 409,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,850.39 : 691,049.55 = 296,949.09 : x
  2. Step 2: Convert to fraction form
    500,850.39/691,049.55 = 296,949.09/x
  3. Step 3: Cross multiply
    500,850.39x = 691,049.55 × 296,949.09
  4. Step 4: Simplify right side
    500,850.39x = 205,206,535,017.41
  5. Step 5: Solve for x
    x = 205,206,535,017.41/500,850.39
  6. Step 6: Final answer
    x = 409,716.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.