Home / 828,964.80-1,243,447.20-765,979.20

Finding the Fourth Proportional to 828,964.80, 1,243,447.20 and 765,979.20

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Solution

The fourth proportional to 828,964.80, 1,243,447.20 and 765,979.20 is: 1,148,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,964.80 : 1,243,447.20 = 765,979.20 : x
  2. Step 2: Convert to fraction form
    828,964.80/1,243,447.20 = 765,979.20/x
  3. Step 3: Cross multiply
    828,964.80x = 1,243,447.20 × 765,979.20
  4. Step 4: Simplify right side
    828,964.80x = 952,454,691,498.24
  5. Step 5: Solve for x
    x = 952,454,691,498.24/828,964.80
  6. Step 6: Final answer
    x = 1,148,968.80

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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.