Home / 1,978,369.03-2,966,003.25-781,187.46

Finding the Fourth Proportional to 1,978,369.03, 2,966,003.25 and 781,187.46

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Solution

The fourth proportional to 1,978,369.03, 2,966,003.25 and 781,187.46 is: 1,171,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,369.03 : 2,966,003.25 = 781,187.46 : x
  2. Step 2: Convert to fraction form
    1,978,369.03/2,966,003.25 = 781,187.46/x
  3. Step 3: Cross multiply
    1,978,369.03x = 2,966,003.25 × 781,187.46
  4. Step 4: Simplify right side
    1,978,369.03x = 2,317,004,545,219.25
  5. Step 5: Solve for x
    x = 2,317,004,545,219.25/1,978,369.03
  6. Step 6: Final answer
    x = 1,171,169.03

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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.