Home / 2,188,728.48-3,020,132.92-1,221,837.56

Finding the Fourth Proportional to 2,188,728.48, 3,020,132.92 and 1,221,837.56

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Solution

The fourth proportional to 2,188,728.48, 3,020,132.92 and 1,221,837.56 is: 1,685,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,728.48 : 3,020,132.92 = 1,221,837.56 : x
  2. Step 2: Convert to fraction form
    2,188,728.48/3,020,132.92 = 1,221,837.56/x
  3. Step 3: Cross multiply
    2,188,728.48x = 3,020,132.92 × 1,221,837.56
  4. Step 4: Simplify right side
    2,188,728.48x = 3,690,111,837,848.48
  5. Step 5: Solve for x
    x = 3,690,111,837,848.48/2,188,728.48
  6. Step 6: Final answer
    x = 1,685,961.45

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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.