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Finding the Fourth Proportional to 500,366.43, 690,505.99 and 270,923.87

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Solution

The fourth proportional to 500,366.43, 690,505.99 and 270,923.87 is: 373,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,366.43 : 690,505.99 = 270,923.87 : x
  2. Step 2: Convert to fraction form
    500,366.43/690,505.99 = 270,923.87/x
  3. Step 3: Cross multiply
    500,366.43x = 690,505.99 × 270,923.87
  4. Step 4: Simplify right side
    500,366.43x = 187,074,554,544.50
  5. Step 5: Solve for x
    x = 187,074,554,544.50/500,366.43
  6. Step 6: Final answer
    x = 373,875.11

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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.