Home / 1,216,786.60-1,826,216.70-543,903.40

Finding the Fourth Proportional to 1,216,786.60, 1,826,216.70 and 543,903.40

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Solution

The fourth proportional to 1,216,786.60, 1,826,216.70 and 543,903.40 is: 816,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,786.60 : 1,826,216.70 = 543,903.40 : x
  2. Step 2: Convert to fraction form
    1,216,786.60/1,826,216.70 = 543,903.40/x
  3. Step 3: Cross multiply
    1,216,786.60x = 1,826,216.70 × 543,903.40
  4. Step 4: Simplify right side
    1,216,786.60x = 993,285,472,266.78
  5. Step 5: Solve for x
    x = 993,285,472,266.78/1,216,786.60
  6. Step 6: Final answer
    x = 816,318.55

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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.