Home / 861,825.93-1,293,329.39-300,860.43

Finding the Fourth Proportional to 861,825.93, 1,293,329.39 and 300,860.43

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Solution

The fourth proportional to 861,825.93, 1,293,329.39 and 300,860.43 is: 451,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,825.93 : 1,293,329.39 = 300,860.43 : x
  2. Step 2: Convert to fraction form
    861,825.93/1,293,329.39 = 300,860.43/x
  3. Step 3: Cross multiply
    861,825.93x = 1,293,329.39 × 300,860.43
  4. Step 4: Simplify right side
    861,825.93x = 389,111,634,902.74
  5. Step 5: Solve for x
    x = 389,111,634,902.74/861,825.93
  6. Step 6: Final answer
    x = 451,496.78

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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.