Home / 463,090.20-639,098.78-259,161.52

Finding the Fourth Proportional to 463,090.20, 639,098.78 and 259,161.52

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Solution

The fourth proportional to 463,090.20, 639,098.78 and 259,161.52 is: 357,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,090.20 : 639,098.78 = 259,161.52 : x
  2. Step 2: Convert to fraction form
    463,090.20/639,098.78 = 259,161.52/x
  3. Step 3: Cross multiply
    463,090.20x = 639,098.78 × 259,161.52
  4. Step 4: Simplify right side
    463,090.20x = 165,629,811,254.95
  5. Step 5: Solve for x
    x = 165,629,811,254.95/463,090.20
  6. Step 6: Final answer
    x = 357,662.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.