Home / 950,571.78-1,311,298.38-644,544.60

Finding the Fourth Proportional to 950,571.78, 1,311,298.38 and 644,544.60

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Solution

The fourth proportional to 950,571.78, 1,311,298.38 and 644,544.60 is: 889,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,571.78 : 1,311,298.38 = 644,544.60 : x
  2. Step 2: Convert to fraction form
    950,571.78/1,311,298.38 = 644,544.60/x
  3. Step 3: Cross multiply
    950,571.78x = 1,311,298.38 × 644,544.60
  4. Step 4: Simplify right side
    950,571.78x = 845,190,289,817.75
  5. Step 5: Solve for x
    x = 845,190,289,817.75/950,571.78
  6. Step 6: Final answer
    x = 889,138.84

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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.