Home / 2,189,392.50-3,021,001.20-1,222,367.52

Finding the Fourth Proportional to 2,189,392.50, 3,021,001.20 and 1,222,367.52

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Solution

The fourth proportional to 2,189,392.50, 3,021,001.20 and 1,222,367.52 is: 1,686,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,392.50 : 3,021,001.20 = 1,222,367.52 : x
  2. Step 2: Convert to fraction form
    2,189,392.50/3,021,001.20 = 1,222,367.52/x
  3. Step 3: Cross multiply
    2,189,392.50x = 3,021,001.20 × 1,222,367.52
  4. Step 4: Simplify right side
    2,189,392.50x = 3,692,773,744,761.02
  5. Step 5: Solve for x
    x = 3,692,773,744,761.02/2,189,392.50
  6. Step 6: Final answer
    x = 1,686,665.93

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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.