Home / 1,049,954.87-1,449,046.56-642,328.14

Finding the Fourth Proportional to 1,049,954.87, 1,449,046.56 and 642,328.14

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Solution

The fourth proportional to 1,049,954.87, 1,449,046.56 and 642,328.14 is: 886,479.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,954.87 : 1,449,046.56 = 642,328.14 : x
  2. Step 2: Convert to fraction form
    1,049,954.87/1,449,046.56 = 642,328.14/x
  3. Step 3: Cross multiply
    1,049,954.87x = 1,449,046.56 × 642,328.14
  4. Step 4: Simplify right side
    1,049,954.87x = 930,763,389,500.85
  5. Step 5: Solve for x
    x = 930,763,389,500.85/1,049,954.87
  6. Step 6: Final answer
    x = 886,479.42

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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.