Home / 500,296.14-690,475.59-296,331.12

Finding the Fourth Proportional to 500,296.14, 690,475.59 and 296,331.12

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Solution

The fourth proportional to 500,296.14, 690,475.59 and 296,331.12 is: 408,976.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,296.14 : 690,475.59 = 296,331.12 : x
  2. Step 2: Convert to fraction form
    500,296.14/690,475.59 = 296,331.12/x
  3. Step 3: Cross multiply
    500,296.14x = 690,475.59 × 296,331.12
  4. Step 4: Simplify right side
    500,296.14x = 204,609,404,917.36
  5. Step 5: Solve for x
    x = 204,609,404,917.36/500,296.14
  6. Step 6: Final answer
    x = 408,976.58

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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.