Home / 681,932.72-941,002.92-395,421.75

Finding the Fourth Proportional to 681,932.72, 941,002.92 and 395,421.75

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Solution

The fourth proportional to 681,932.72, 941,002.92 and 395,421.75 is: 545,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,932.72 : 941,002.92 = 395,421.75 : x
  2. Step 2: Convert to fraction form
    681,932.72/941,002.92 = 395,421.75/x
  3. Step 3: Cross multiply
    681,932.72x = 941,002.92 × 395,421.75
  4. Step 4: Simplify right side
    681,932.72x = 372,093,021,381.51
  5. Step 5: Solve for x
    x = 372,093,021,381.51/681,932.72
  6. Step 6: Final answer
    x = 545,644.77

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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.