Home / 1,145,107.20-1,717,660.80-827,846.40

Finding the Fourth Proportional to 1,145,107.20, 1,717,660.80 and 827,846.40

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Solution

The fourth proportional to 1,145,107.20, 1,717,660.80 and 827,846.40 is: 1,241,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,107.20 : 1,717,660.80 = 827,846.40 : x
  2. Step 2: Convert to fraction form
    1,145,107.20/1,717,660.80 = 827,846.40/x
  3. Step 3: Cross multiply
    1,145,107.20x = 1,717,660.80 × 827,846.40
  4. Step 4: Simplify right side
    1,145,107.20x = 1,421,959,309,701.12
  5. Step 5: Solve for x
    x = 1,421,959,309,701.12/1,145,107.20
  6. Step 6: Final answer
    x = 1,241,769.60

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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.