Home / 1,141,205.20-1,711,807.80-809,429.20

Finding the Fourth Proportional to 1,141,205.20, 1,711,807.80 and 809,429.20

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Solution

The fourth proportional to 1,141,205.20, 1,711,807.80 and 809,429.20 is: 1,214,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,205.20 : 1,711,807.80 = 809,429.20 : x
  2. Step 2: Convert to fraction form
    1,141,205.20/1,711,807.80 = 809,429.20/x
  3. Step 3: Cross multiply
    1,141,205.20x = 1,711,807.80 × 809,429.20
  4. Step 4: Simplify right side
    1,141,205.20x = 1,385,587,218,107.76
  5. Step 5: Solve for x
    x = 1,385,587,218,107.76/1,141,205.20
  6. Step 6: Final answer
    x = 1,214,143.80

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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.