Home / 828,278.80-1,242,382.06-259,646.93

Finding the Fourth Proportional to 828,278.80, 1,242,382.06 and 259,646.93

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Solution

The fourth proportional to 828,278.80, 1,242,382.06 and 259,646.93 is: 389,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,278.80 : 1,242,382.06 = 259,646.93 : x
  2. Step 2: Convert to fraction form
    828,278.80/1,242,382.06 = 259,646.93/x
  3. Step 3: Cross multiply
    828,278.80x = 1,242,382.06 × 259,646.93
  4. Step 4: Simplify right side
    828,278.80x = 322,580,687,766.08
  5. Step 5: Solve for x
    x = 322,580,687,766.08/828,278.80
  6. Step 6: Final answer
    x = 389,459.07

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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.