Home / 500,110.80-690,109.24-296,125.22

Finding the Fourth Proportional to 500,110.80, 690,109.24 and 296,125.22

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Solution

The fourth proportional to 500,110.80, 690,109.24 and 296,125.22 is: 408,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,110.80 : 690,109.24 = 296,125.22 : x
  2. Step 2: Convert to fraction form
    500,110.80/690,109.24 = 296,125.22/x
  3. Step 3: Cross multiply
    500,110.80x = 690,109.24 × 296,125.22
  4. Step 4: Simplify right side
    500,110.80x = 204,358,750,519.03
  5. Step 5: Solve for x
    x = 204,358,750,519.03/500,110.80
  6. Step 6: Final answer
    x = 408,626.95

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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.