Home / 1,990,868.13-2,747,318.87-1,175,334.51

Finding the Fourth Proportional to 1,990,868.13, 2,747,318.87 and 1,175,334.51

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Solution

The fourth proportional to 1,990,868.13, 2,747,318.87 and 1,175,334.51 is: 1,621,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,868.13 : 2,747,318.87 = 1,175,334.51 : x
  2. Step 2: Convert to fraction form
    1,990,868.13/2,747,318.87 = 1,175,334.51/x
  3. Step 3: Cross multiply
    1,990,868.13x = 2,747,318.87 × 1,175,334.51
  4. Step 4: Simplify right side
    1,990,868.13x = 3,229,018,691,125.99
  5. Step 5: Solve for x
    x = 3,229,018,691,125.99/1,990,868.13
  6. Step 6: Final answer
    x = 1,621,914.90

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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.