Home / 828,238.58-1,242,321.73-259,606.71

Finding the Fourth Proportional to 828,238.58, 1,242,321.73 and 259,606.71

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Solution

The fourth proportional to 828,238.58, 1,242,321.73 and 259,606.71 is: 389,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,238.58 : 1,242,321.73 = 259,606.71 : x
  2. Step 2: Convert to fraction form
    828,238.58/1,242,321.73 = 259,606.71/x
  3. Step 3: Cross multiply
    828,238.58x = 1,242,321.73 × 259,606.71
  4. Step 4: Simplify right side
    828,238.58x = 322,515,050,875.20
  5. Step 5: Solve for x
    x = 322,515,050,875.20/828,238.58
  6. Step 6: Final answer
    x = 389,398.73

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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.