Home / 1,987,125.20-2,982,665.40-922,408.40

Finding the Fourth Proportional to 1,987,125.20, 2,982,665.40 and 922,408.40

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Solution

The fourth proportional to 1,987,125.20, 2,982,665.40 and 922,408.40 is: 1,384,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,125.20 : 2,982,665.40 = 922,408.40 : x
  2. Step 2: Convert to fraction form
    1,987,125.20/2,982,665.40 = 922,408.40/x
  3. Step 3: Cross multiply
    1,987,125.20x = 2,982,665.40 × 922,408.40
  4. Step 4: Simplify right side
    1,987,125.20x = 2,751,235,619,349.36
  5. Step 5: Solve for x
    x = 2,751,235,619,349.36/1,987,125.20
  6. Step 6: Final answer
    x = 1,384,530.59

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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.