Home / 2,787,203.28-4,181,220.36-989,935.76

Finding the Fourth Proportional to 2,787,203.28, 4,181,220.36 and 989,935.76

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Solution

The fourth proportional to 2,787,203.28, 4,181,220.36 and 989,935.76 is: 1,485,051.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,203.28 : 4,181,220.36 = 989,935.76 : x
  2. Step 2: Convert to fraction form
    2,787,203.28/4,181,220.36 = 989,935.76/x
  3. Step 3: Cross multiply
    2,787,203.28x = 4,181,220.36 × 989,935.76
  4. Step 4: Simplify right side
    2,787,203.28x = 4,139,139,554,804.07
  5. Step 5: Solve for x
    x = 4,139,139,554,804.07/2,787,203.28
  6. Step 6: Final answer
    x = 1,485,051.19

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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.