Home / 828,335.78-1,242,519.23-259,704.28

Finding the Fourth Proportional to 828,335.78, 1,242,519.23 and 259,704.28

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Solution

The fourth proportional to 828,335.78, 1,242,519.23 and 259,704.28 is: 389,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,335.78 : 1,242,519.23 = 259,704.28 : x
  2. Step 2: Convert to fraction form
    828,335.78/1,242,519.23 = 259,704.28/x
  3. Step 3: Cross multiply
    828,335.78x = 1,242,519.23 × 259,704.28
  4. Step 4: Simplify right side
    828,335.78x = 322,687,562,013.30
  5. Step 5: Solve for x
    x = 322,687,562,013.30/828,335.78
  6. Step 6: Final answer
    x = 389,561.30

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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.