Home / 1,324,992.42-1,987,070.31-426,233.79

Finding the Fourth Proportional to 1,324,992.42, 1,987,070.31 and 426,233.79

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Solution

The fourth proportional to 1,324,992.42, 1,987,070.31 and 426,233.79 is: 639,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,992.42 : 1,987,070.31 = 426,233.79 : x
  2. Step 2: Convert to fraction form
    1,324,992.42/1,987,070.31 = 426,233.79/x
  3. Step 3: Cross multiply
    1,324,992.42x = 1,987,070.31 × 426,233.79
  4. Step 4: Simplify right side
    1,324,992.42x = 846,956,509,227.78
  5. Step 5: Solve for x
    x = 846,956,509,227.78/1,324,992.42
  6. Step 6: Final answer
    x = 639,216.12

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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.