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Finding the Fourth Proportional to 509,825.48, 703,554.90 and 283,469

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Solution

The fourth proportional to 509,825.48, 703,554.90 and 283,469 is: 391,184.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,825.48 : 703,554.90 = 283,469 : x
  2. Step 2: Convert to fraction form
    509,825.48/703,554.90 = 283,469/x
  3. Step 3: Cross multiply
    509,825.48x = 703,554.90 × 283,469
  4. Step 4: Simplify right side
    509,825.48x = 199,436,003,948.10
  5. Step 5: Solve for x
    x = 199,436,003,948.10/509,825.48
  6. Step 6: Final answer
    x = 391,184.85

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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.