Home / 691,104.22-1,036,797.26-391,718.50

Finding the Fourth Proportional to 691,104.22, 1,036,797.26 and 391,718.50

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Solution

The fourth proportional to 691,104.22, 1,036,797.26 and 391,718.50 is: 587,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,104.22 : 1,036,797.26 = 391,718.50 : x
  2. Step 2: Convert to fraction form
    691,104.22/1,036,797.26 = 391,718.50/x
  3. Step 3: Cross multiply
    691,104.22x = 1,036,797.26 × 391,718.50
  4. Step 4: Simplify right side
    691,104.22x = 406,132,667,491.31
  5. Step 5: Solve for x
    x = 406,132,667,491.31/691,104.22
  6. Step 6: Final answer
    x = 587,657.63

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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.