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Finding the Fourth Proportional to 500,282.29, 690,388.70 and 270,839.49

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Solution

The fourth proportional to 500,282.29, 690,388.70 and 270,839.49 is: 373,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,282.29 : 690,388.70 = 270,839.49 : x
  2. Step 2: Convert to fraction form
    500,282.29/690,388.70 = 270,839.49/x
  3. Step 3: Cross multiply
    500,282.29x = 690,388.70 × 270,839.49
  4. Step 4: Simplify right side
    500,282.29x = 186,984,519,466.61
  5. Step 5: Solve for x
    x = 186,984,519,466.61/500,282.29
  6. Step 6: Final answer
    x = 373,758.02

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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.