Home / 1,207,146.94-1,665,238.11-819,982.30

Finding the Fourth Proportional to 1,207,146.94, 1,665,238.11 and 819,982.30

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Solution

The fourth proportional to 1,207,146.94, 1,665,238.11 and 819,982.30 is: 1,131,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,146.94 : 1,665,238.11 = 819,982.30 : x
  2. Step 2: Convert to fraction form
    1,207,146.94/1,665,238.11 = 819,982.30/x
  3. Step 3: Cross multiply
    1,207,146.94x = 1,665,238.11 × 819,982.30
  4. Step 4: Simplify right side
    1,207,146.94x = 1,365,465,775,485.45
  5. Step 5: Solve for x
    x = 1,365,465,775,485.45/1,207,146.94
  6. Step 6: Final answer
    x = 1,131,151.25

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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.