Home / 828,843.36-1,242,863.28-379,429.44

Finding the Fourth Proportional to 828,843.36, 1,242,863.28 and 379,429.44

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Solution

The fourth proportional to 828,843.36, 1,242,863.28 and 379,429.44 is: 568,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,843.36 : 1,242,863.28 = 379,429.44 : x
  2. Step 2: Convert to fraction form
    828,843.36/1,242,863.28 = 379,429.44/x
  3. Step 3: Cross multiply
    828,843.36x = 1,242,863.28 × 379,429.44
  4. Step 4: Simplify right side
    828,843.36x = 471,578,918,326.96
  5. Step 5: Solve for x
    x = 471,578,918,326.96/828,843.36
  6. Step 6: Final answer
    x = 568,960.24

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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.