Home / 1,786,928.82-2,681,721.84-721,980.12

Finding the Fourth Proportional to 1,786,928.82, 2,681,721.84 and 721,980.12

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Solution

The fourth proportional to 1,786,928.82, 2,681,721.84 and 721,980.12 is: 1,083,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,928.82 : 2,681,721.84 = 721,980.12 : x
  2. Step 2: Convert to fraction form
    1,786,928.82/2,681,721.84 = 721,980.12/x
  3. Step 3: Cross multiply
    1,786,928.82x = 2,681,721.84 × 721,980.12
  4. Step 4: Simplify right side
    1,786,928.82x = 1,936,149,855,849.82
  5. Step 5: Solve for x
    x = 1,936,149,855,849.82/1,786,928.82
  6. Step 6: Final answer
    x = 1,083,506.98

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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.