Home / 691,102.22-1,036,794.26-391,716.50

Finding the Fourth Proportional to 691,102.22, 1,036,794.26 and 391,716.50

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Solution

The fourth proportional to 691,102.22, 1,036,794.26 and 391,716.50 is: 587,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,102.22 : 1,036,794.26 = 391,716.50 : x
  2. Step 2: Convert to fraction form
    691,102.22/1,036,794.26 = 391,716.50/x
  3. Step 3: Cross multiply
    691,102.22x = 1,036,794.26 × 391,716.50
  4. Step 4: Simplify right side
    691,102.22x = 406,129,414,542.61
  5. Step 5: Solve for x
    x = 406,129,414,542.61/691,102.22
  6. Step 6: Final answer
    x = 587,654.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.