Home / 1,212,433.31-1,818,958.88-359,536.12

Finding the Fourth Proportional to 1,212,433.31, 1,818,958.88 and 359,536.12

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Solution

The fourth proportional to 1,212,433.31, 1,818,958.88 and 359,536.12 is: 539,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,433.31 : 1,818,958.88 = 359,536.12 : x
  2. Step 2: Convert to fraction form
    1,212,433.31/1,818,958.88 = 359,536.12/x
  3. Step 3: Cross multiply
    1,212,433.31x = 1,818,958.88 × 359,536.12
  4. Step 4: Simplify right side
    1,212,433.31x = 653,981,414,506.19
  5. Step 5: Solve for x
    x = 653,981,414,506.19/1,212,433.31
  6. Step 6: Final answer
    x = 539,395.78

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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.