Home / 1,242,847.39-1,855,197.82-1,066,487.71

Finding the Fourth Proportional to 1,242,847.39, 1,855,197.82 and 1,066,487.71

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Solution

The fourth proportional to 1,242,847.39, 1,855,197.82 and 1,066,487.71 is: 1,591,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,847.39 : 1,855,197.82 = 1,066,487.71 : x
  2. Step 2: Convert to fraction form
    1,242,847.39/1,855,197.82 = 1,066,487.71/x
  3. Step 3: Cross multiply
    1,242,847.39x = 1,855,197.82 × 1,066,487.71
  4. Step 4: Simplify right side
    1,242,847.39x = 1,978,545,660,040.36
  5. Step 5: Solve for x
    x = 1,978,545,660,040.36/1,242,847.39
  6. Step 6: Final answer
    x = 1,591,945.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.