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Finding the Fourth Proportional to 661,676, 913,110.96 and 367,370.65

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Solution

The fourth proportional to 661,676, 913,110.96 and 367,370.65 is: 506,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,676 : 913,110.96 = 367,370.65 : x
  2. Step 2: Convert to fraction form
    661,676/913,110.96 = 367,370.65/x
  3. Step 3: Cross multiply
    661,676x = 913,110.96 × 367,370.65
  4. Step 4: Simplify right side
    661,676x = 335,450,162,331.77
  5. Step 5: Solve for x
    x = 335,450,162,331.77/661,676
  6. Step 6: Final answer
    x = 506,970.42

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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.