Home / 828,143.13-1,242,214.85-259,524.05

Finding the Fourth Proportional to 828,143.13, 1,242,214.85 and 259,524.05

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Solution

The fourth proportional to 828,143.13, 1,242,214.85 and 259,524.05 is: 389,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,143.13 : 1,242,214.85 = 259,524.05 : x
  2. Step 2: Convert to fraction form
    828,143.13/1,242,214.85 = 259,524.05/x
  3. Step 3: Cross multiply
    828,143.13x = 1,242,214.85 × 259,524.05
  4. Step 4: Simplify right side
    828,143.13x = 322,384,621,333.45
  5. Step 5: Solve for x
    x = 322,384,621,333.45/828,143.13
  6. Step 6: Final answer
    x = 389,286.11

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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.