Home / 2,189,390.52-3,020,998.44-1,222,365.52

Finding the Fourth Proportional to 2,189,390.52, 3,020,998.44 and 1,222,365.52

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Solution

The fourth proportional to 2,189,390.52, 3,020,998.44 and 1,222,365.52 is: 1,686,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,390.52 : 3,020,998.44 = 1,222,365.52 : x
  2. Step 2: Convert to fraction form
    2,189,390.52/3,020,998.44 = 1,222,365.52/x
  3. Step 3: Cross multiply
    2,189,390.52x = 3,020,998.44 × 1,222,365.52
  4. Step 4: Simplify right side
    2,189,390.52x = 3,692,764,329,029.79
  5. Step 5: Solve for x
    x = 3,692,764,329,029.79/2,189,390.52
  6. Step 6: Final answer
    x = 1,686,663.16

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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.