Home / 886,727.75-1,330,278.42-287,642.13

Finding the Fourth Proportional to 886,727.75, 1,330,278.42 and 287,642.13

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Solution

The fourth proportional to 886,727.75, 1,330,278.42 and 287,642.13 is: 431,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,727.75 : 1,330,278.42 = 287,642.13 : x
  2. Step 2: Convert to fraction form
    886,727.75/1,330,278.42 = 287,642.13/x
  3. Step 3: Cross multiply
    886,727.75x = 1,330,278.42 × 287,642.13
  4. Step 4: Simplify right side
    886,727.75x = 382,644,118,221.84
  5. Step 5: Solve for x
    x = 382,644,118,221.84/886,727.75
  6. Step 6: Final answer
    x = 431,523.79

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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.