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Finding the Fourth Proportional to 495,575.26, 683,839 and 274,807

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Solution

The fourth proportional to 495,575.26, 683,839 and 274,807 is: 379,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,575.26 : 683,839 = 274,807 : x
  2. Step 2: Convert to fraction form
    495,575.26/683,839 = 274,807/x
  3. Step 3: Cross multiply
    495,575.26x = 683,839 × 274,807
  4. Step 4: Simplify right side
    495,575.26x = 187,923,744,073
  5. Step 5: Solve for x
    x = 187,923,744,073/495,575.26
  6. Step 6: Final answer
    x = 379,203.24

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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.