Home / 1,340,434.80-1,849,183.56-1,187,628.84

Finding the Fourth Proportional to 1,340,434.80, 1,849,183.56 and 1,187,628.84

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Solution

The fourth proportional to 1,340,434.80, 1,849,183.56 and 1,187,628.84 is: 1,638,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,434.80 : 1,849,183.56 = 1,187,628.84 : x
  2. Step 2: Convert to fraction form
    1,340,434.80/1,849,183.56 = 1,187,628.84/x
  3. Step 3: Cross multiply
    1,340,434.80x = 1,849,183.56 × 1,187,628.84
  4. Step 4: Simplify right side
    1,340,434.80x = 2,196,143,726,309.87
  5. Step 5: Solve for x
    x = 2,196,143,726,309.87/1,340,434.80
  6. Step 6: Final answer
    x = 1,638,381.61

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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.