Home / 500,109.81-690,107.86-296,124.22

Finding the Fourth Proportional to 500,109.81, 690,107.86 and 296,124.22

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Solution

The fourth proportional to 500,109.81, 690,107.86 and 296,124.22 is: 408,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,109.81 : 690,107.86 = 296,124.22 : x
  2. Step 2: Convert to fraction form
    500,109.81/690,107.86 = 296,124.22/x
  3. Step 3: Cross multiply
    500,109.81x = 690,107.86 × 296,124.22
  4. Step 4: Simplify right side
    500,109.81x = 204,357,651,758.37
  5. Step 5: Solve for x
    x = 204,357,651,758.37/500,109.81
  6. Step 6: Final answer
    x = 408,625.56

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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.