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Finding the Fourth Proportional to 508,797.88, 702,105.90 and 282,425.56

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Solution

The fourth proportional to 508,797.88, 702,105.90 and 282,425.56 is: 389,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,797.88 : 702,105.90 = 282,425.56 : x
  2. Step 2: Convert to fraction form
    508,797.88/702,105.90 = 282,425.56/x
  3. Step 3: Cross multiply
    508,797.88x = 702,105.90 × 282,425.56
  4. Step 4: Simplify right side
    508,797.88x = 198,292,651,986.80
  5. Step 5: Solve for x
    x = 198,292,651,986.80/508,797.88
  6. Step 6: Final answer
    x = 389,727.75

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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.