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Finding the Fourth Proportional to 613,679.88, 846,707.13 and 395,796.36

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Solution

The fourth proportional to 613,679.88, 846,707.13 and 395,796.36 is: 546,088.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,679.88 : 846,707.13 = 395,796.36 : x
  2. Step 2: Convert to fraction form
    613,679.88/846,707.13 = 395,796.36/x
  3. Step 3: Cross multiply
    613,679.88x = 846,707.13 × 395,796.36
  4. Step 4: Simplify right side
    613,679.88x = 335,123,600,040.05
  5. Step 5: Solve for x
    x = 335,123,600,040.05/613,679.88
  6. Step 6: Final answer
    x = 546,088.62

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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.