Home / 1,988,288.92-2,979,653.28-1,075,500.91

Finding the Fourth Proportional to 1,988,288.92, 2,979,653.28 and 1,075,500.91

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Solution

The fourth proportional to 1,988,288.92, 2,979,653.28 and 1,075,500.91 is: 1,611,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,288.92 : 2,979,653.28 = 1,075,500.91 : x
  2. Step 2: Convert to fraction form
    1,988,288.92/2,979,653.28 = 1,075,500.91/x
  3. Step 3: Cross multiply
    1,988,288.92x = 2,979,653.28 × 1,075,500.91
  4. Step 4: Simplify right side
    1,988,288.92x = 3,204,619,814,124.48
  5. Step 5: Solve for x
    x = 3,204,619,814,124.48/1,988,288.92
  6. Step 6: Final answer
    x = 1,611,747.56

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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.