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Finding the Fourth Proportional to 496,606.16, 685,269.06 and 278,764.92

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Solution

The fourth proportional to 496,606.16, 685,269.06 and 278,764.92 is: 384,668.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,606.16 : 685,269.06 = 278,764.92 : x
  2. Step 2: Convert to fraction form
    496,606.16/685,269.06 = 278,764.92/x
  3. Step 3: Cross multiply
    496,606.16x = 685,269.06 × 278,764.92
  4. Step 4: Simplify right side
    496,606.16x = 191,028,974,689.38
  5. Step 5: Solve for x
    x = 191,028,974,689.38/496,606.16
  6. Step 6: Final answer
    x = 384,668.96

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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.