Home / 1,989,122.88-2,745,318.78-1,173,525.96

Finding the Fourth Proportional to 1,989,122.88, 2,745,318.78 and 1,173,525.96

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Solution

The fourth proportional to 1,989,122.88, 2,745,318.78 and 1,173,525.96 is: 1,619,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,122.88 : 2,745,318.78 = 1,173,525.96 : x
  2. Step 2: Convert to fraction form
    1,989,122.88/2,745,318.78 = 1,173,525.96/x
  3. Step 3: Cross multiply
    1,989,122.88x = 2,745,318.78 × 1,173,525.96
  4. Step 4: Simplify right side
    1,989,122.88x = 3,221,702,856,805.53
  5. Step 5: Solve for x
    x = 3,221,702,856,805.53/1,989,122.88
  6. Step 6: Final answer
    x = 1,619,660.05

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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.