Home / 2,787,201.28-4,181,217.36-989,933.76

Finding the Fourth Proportional to 2,787,201.28, 4,181,217.36 and 989,933.76

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Solution

The fourth proportional to 2,787,201.28, 4,181,217.36 and 989,933.76 is: 1,485,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,201.28 : 4,181,217.36 = 989,933.76 : x
  2. Step 2: Convert to fraction form
    2,787,201.28/4,181,217.36 = 989,933.76/x
  3. Step 3: Cross multiply
    2,787,201.28x = 4,181,217.36 × 989,933.76
  4. Step 4: Simplify right side
    2,787,201.28x = 4,139,128,222,562.07
  5. Step 5: Solve for x
    x = 4,139,128,222,562.07/2,787,201.28
  6. Step 6: Final answer
    x = 1,485,048.19

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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.