Home / 828,936.40-1,243,404.60-810,504.40

Finding the Fourth Proportional to 828,936.40, 1,243,404.60 and 810,504.40

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Solution

The fourth proportional to 828,936.40, 1,243,404.60 and 810,504.40 is: 1,215,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,936.40 : 1,243,404.60 = 810,504.40 : x
  2. Step 2: Convert to fraction form
    828,936.40/1,243,404.60 = 810,504.40/x
  3. Step 3: Cross multiply
    828,936.40x = 1,243,404.60 × 810,504.40
  4. Step 4: Simplify right side
    828,936.40x = 1,007,784,899,280.24
  5. Step 5: Solve for x
    x = 1,007,784,899,280.24/828,936.40
  6. Step 6: Final answer
    x = 1,215,756.60

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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.