Home / 828,277.80-1,242,380.56-259,645.93

Finding the Fourth Proportional to 828,277.80, 1,242,380.56 and 259,645.93

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Solution

The fourth proportional to 828,277.80, 1,242,380.56 and 259,645.93 is: 389,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,277.80 : 1,242,380.56 = 259,645.93 : x
  2. Step 2: Convert to fraction form
    828,277.80/1,242,380.56 = 259,645.93/x
  3. Step 3: Cross multiply
    828,277.80x = 1,242,380.56 × 259,645.93
  4. Step 4: Simplify right side
    828,277.80x = 322,579,052,712.17
  5. Step 5: Solve for x
    x = 322,579,052,712.17/828,277.80
  6. Step 6: Final answer
    x = 389,457.56

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1.5x scale

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.