Home / 781,634.84-1,172,241.32-276,129.26

Finding the Fourth Proportional to 781,634.84, 1,172,241.32 and 276,129.26

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Solution

The fourth proportional to 781,634.84, 1,172,241.32 and 276,129.26 is: 414,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,634.84 : 1,172,241.32 = 276,129.26 : x
  2. Step 2: Convert to fraction form
    781,634.84/1,172,241.32 = 276,129.26/x
  3. Step 3: Cross multiply
    781,634.84x = 1,172,241.32 × 276,129.26
  4. Step 4: Simplify right side
    781,634.84x = 323,690,128,233.02
  5. Step 5: Solve for x
    x = 323,690,128,233.02/781,634.84
  6. Step 6: Final answer
    x = 414,119.37

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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.