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Finding the Fourth Proportional to 661,930.26, 913,434.86 and 367,561.73

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Solution

The fourth proportional to 661,930.26, 913,434.86 and 367,561.73 is: 507,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,930.26 : 913,434.86 = 367,561.73 : x
  2. Step 2: Convert to fraction form
    661,930.26/913,434.86 = 367,561.73/x
  3. Step 3: Cross multiply
    661,930.26x = 913,434.86 × 367,561.73
  4. Step 4: Simplify right side
    661,930.26x = 335,743,693,735.64
  5. Step 5: Solve for x
    x = 335,743,693,735.64/661,930.26
  6. Step 6: Final answer
    x = 507,219.13

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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.