Home / 828,936.80-1,243,405.20-629,871.20

Finding the Fourth Proportional to 828,936.80, 1,243,405.20 and 629,871.20

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Solution

The fourth proportional to 828,936.80, 1,243,405.20 and 629,871.20 is: 944,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,936.80 : 1,243,405.20 = 629,871.20 : x
  2. Step 2: Convert to fraction form
    828,936.80/1,243,405.20 = 629,871.20/x
  3. Step 3: Cross multiply
    828,936.80x = 1,243,405.20 × 629,871.20
  4. Step 4: Simplify right side
    828,936.80x = 783,185,125,410.24
  5. Step 5: Solve for x
    x = 783,185,125,410.24/828,936.80
  6. Step 6: Final answer
    x = 944,806.80

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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.