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Finding the Fourth Proportional to 495,408.73, 683,668.07 and 269,055.85

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Solution

The fourth proportional to 495,408.73, 683,668.07 and 269,055.85 is: 371,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,408.73 : 683,668.07 = 269,055.85 : x
  2. Step 2: Convert to fraction form
    495,408.73/683,668.07 = 269,055.85/x
  3. Step 3: Cross multiply
    495,408.73x = 683,668.07 × 269,055.85
  4. Step 4: Simplify right side
    495,408.73x = 183,944,892,346.43
  5. Step 5: Solve for x
    x = 183,944,892,346.43/495,408.73
  6. Step 6: Final answer
    x = 371,299.25

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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.