Home / 647,982.87-972,408.15-268,904.01

Finding the Fourth Proportional to 647,982.87, 972,408.15 and 268,904.01

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Solution

The fourth proportional to 647,982.87, 972,408.15 and 268,904.01 is: 403,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,982.87 : 972,408.15 = 268,904.01 : x
  2. Step 2: Convert to fraction form
    647,982.87/972,408.15 = 268,904.01/x
  3. Step 3: Cross multiply
    647,982.87x = 972,408.15 × 268,904.01
  4. Step 4: Simplify right side
    647,982.87x = 261,484,450,891.68
  5. Step 5: Solve for x
    x = 261,484,450,891.68/647,982.87
  6. Step 6: Final answer
    x = 403,536.05

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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.