Home / 1,421,548.25-1,961,736.17-809,757.68

Finding the Fourth Proportional to 1,421,548.25, 1,961,736.17 and 809,757.68

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Solution

The fourth proportional to 1,421,548.25, 1,961,736.17 and 809,757.68 is: 1,117,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,548.25 : 1,961,736.17 = 809,757.68 : x
  2. Step 2: Convert to fraction form
    1,421,548.25/1,961,736.17 = 809,757.68/x
  3. Step 3: Cross multiply
    1,421,548.25x = 1,961,736.17 × 809,757.68
  4. Step 4: Simplify right side
    1,421,548.25x = 1,588,530,915,933.82
  5. Step 5: Solve for x
    x = 1,588,530,915,933.82/1,421,548.25
  6. Step 6: Final answer
    x = 1,117,465.36

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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.