Home / 821,204.13-1,231,849.94-260,282.37

Finding the Fourth Proportional to 821,204.13, 1,231,849.94 and 260,282.37

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Solution

The fourth proportional to 821,204.13, 1,231,849.94 and 260,282.37 is: 390,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,204.13 : 1,231,849.94 = 260,282.37 : x
  2. Step 2: Convert to fraction form
    821,204.13/1,231,849.94 = 260,282.37/x
  3. Step 3: Cross multiply
    821,204.13x = 1,231,849.94 × 260,282.37
  4. Step 4: Simplify right side
    821,204.13x = 320,628,820,566.15
  5. Step 5: Solve for x
    x = 320,628,820,566.15/821,204.13
  6. Step 6: Final answer
    x = 390,437.42

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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.