Home / 1,209,665.56-1,669,338.38-658,385.22

Finding the Fourth Proportional to 1,209,665.56, 1,669,338.38 and 658,385.22

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Solution

The fourth proportional to 1,209,665.56, 1,669,338.38 and 658,385.22 is: 908,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,665.56 : 1,669,338.38 = 658,385.22 : x
  2. Step 2: Convert to fraction form
    1,209,665.56/1,669,338.38 = 658,385.22/x
  3. Step 3: Cross multiply
    1,209,665.56x = 1,669,338.38 × 658,385.22
  4. Step 4: Simplify right side
    1,209,665.56x = 1,099,067,711,383.28
  5. Step 5: Solve for x
    x = 1,099,067,711,383.28/1,209,665.56
  6. Step 6: Final answer
    x = 908,571.55

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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.