Home / 691,192.22-1,036,929.44-391,806.50

Finding the Fourth Proportional to 691,192.22, 1,036,929.44 and 391,806.50

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Solution

The fourth proportional to 691,192.22, 1,036,929.44 and 391,806.50 is: 587,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,192.22 : 1,036,929.44 = 391,806.50 : x
  2. Step 2: Convert to fraction form
    691,192.22/1,036,929.44 = 391,806.50/x
  3. Step 3: Cross multiply
    691,192.22x = 1,036,929.44 × 391,806.50
  4. Step 4: Simplify right side
    691,192.22x = 406,275,690,428.23
  5. Step 5: Solve for x
    x = 406,275,690,428.23/691,192.22
  6. Step 6: Final answer
    x = 587,789.74

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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.