Home / 2,189,779.92-3,021,457.92-1,222,761.42

Finding the Fourth Proportional to 2,189,779.92, 3,021,457.92 and 1,222,761.42

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Solution

The fourth proportional to 2,189,779.92, 3,021,457.92 and 1,222,761.42 is: 1,687,165.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,779.92 : 3,021,457.92 = 1,222,761.42 : x
  2. Step 2: Convert to fraction form
    2,189,779.92/3,021,457.92 = 1,222,761.42/x
  3. Step 3: Cross multiply
    2,189,779.92x = 3,021,457.92 × 1,222,761.42
  4. Step 4: Simplify right side
    2,189,779.92x = 3,694,522,176,729.45
  5. Step 5: Solve for x
    x = 3,694,522,176,729.45/2,189,779.92
  6. Step 6: Final answer
    x = 1,687,165.98

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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.