Home / 812,884.88-1,219,743.66-386,902.64

Finding the Fourth Proportional to 812,884.88, 1,219,743.66 and 386,902.64

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Solution

The fourth proportional to 812,884.88, 1,219,743.66 and 386,902.64 is: 580,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,884.88 : 1,219,743.66 = 386,902.64 : x
  2. Step 2: Convert to fraction form
    812,884.88/1,219,743.66 = 386,902.64/x
  3. Step 3: Cross multiply
    812,884.88x = 1,219,743.66 × 386,902.64
  4. Step 4: Simplify right side
    812,884.88x = 471,922,042,177.26
  5. Step 5: Solve for x
    x = 471,922,042,177.26/812,884.88
  6. Step 6: Final answer
    x = 580,552.12

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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.