Home / 2,237,131.28-3,087,288.60-1,218,533.60

Finding the Fourth Proportional to 2,237,131.28, 3,087,288.60 and 1,218,533.60

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Solution

The fourth proportional to 2,237,131.28, 3,087,288.60 and 1,218,533.60 is: 1,681,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237,131.28 : 3,087,288.60 = 1,218,533.60 : x
  2. Step 2: Convert to fraction form
    2,237,131.28/3,087,288.60 = 1,218,533.60/x
  3. Step 3: Cross multiply
    2,237,131.28x = 3,087,288.60 × 1,218,533.60
  4. Step 4: Simplify right side
    2,237,131.28x = 3,761,964,891,996.96
  5. Step 5: Solve for x
    x = 3,761,964,891,996.96/2,237,131.28
  6. Step 6: Final answer
    x = 1,681,602.20

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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.