Home / 500,270.16-690,439.56-296,304.60

Finding the Fourth Proportional to 500,270.16, 690,439.56 and 296,304.60

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Solution

The fourth proportional to 500,270.16, 690,439.56 and 296,304.60 is: 408,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,270.16 : 690,439.56 = 296,304.60 : x
  2. Step 2: Convert to fraction form
    500,270.16/690,439.56 = 296,304.60/x
  3. Step 3: Cross multiply
    500,270.16x = 690,439.56 × 296,304.60
  4. Step 4: Simplify right side
    500,270.16x = 204,580,417,649.98
  5. Step 5: Solve for x
    x = 204,580,417,649.98/500,270.16
  6. Step 6: Final answer
    x = 408,939.88

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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.