Home / 1,997,316.62-2,756,464.89-1,222,943.66

Finding the Fourth Proportional to 1,997,316.62, 2,756,464.89 and 1,222,943.66

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Solution

The fourth proportional to 1,997,316.62, 2,756,464.89 and 1,222,943.66 is: 1,687,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,316.62 : 2,756,464.89 = 1,222,943.66 : x
  2. Step 2: Convert to fraction form
    1,997,316.62/2,756,464.89 = 1,222,943.66/x
  3. Step 3: Cross multiply
    1,997,316.62x = 2,756,464.89 × 1,222,943.66
  4. Step 4: Simplify right side
    1,997,316.62x = 3,371,001,261,238.10
  5. Step 5: Solve for x
    x = 3,371,001,261,238.10/1,997,316.62
  6. Step 6: Final answer
    x = 1,687,765.09

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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.