Home / 1,868,333.80-2,578,491.12-1,143,660.40

Finding the Fourth Proportional to 1,868,333.80, 2,578,491.12 and 1,143,660.40

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Solution

The fourth proportional to 1,868,333.80, 2,578,491.12 and 1,143,660.40 is: 1,578,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,333.80 : 2,578,491.12 = 1,143,660.40 : x
  2. Step 2: Convert to fraction form
    1,868,333.80/2,578,491.12 = 1,143,660.40/x
  3. Step 3: Cross multiply
    1,868,333.80x = 2,578,491.12 × 1,143,660.40
  4. Step 4: Simplify right side
    1,868,333.80x = 2,948,918,185,695.65
  5. Step 5: Solve for x
    x = 2,948,918,185,695.65/1,868,333.80
  6. Step 6: Final answer
    x = 1,578,367.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.