Home / 828,124.43-1,242,186.82-259,505.42

Finding the Fourth Proportional to 828,124.43, 1,242,186.82 and 259,505.42

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Solution

The fourth proportional to 828,124.43, 1,242,186.82 and 259,505.42 is: 389,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,124.43 : 1,242,186.82 = 259,505.42 : x
  2. Step 2: Convert to fraction form
    828,124.43/1,242,186.82 = 259,505.42/x
  3. Step 3: Cross multiply
    828,124.43x = 1,242,186.82 × 259,505.42
  4. Step 4: Simplify right side
    828,124.43x = 322,354,210,241.07
  5. Step 5: Solve for x
    x = 322,354,210,241.07/828,124.43
  6. Step 6: Final answer
    x = 389,258.18

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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.