Home / 2,189,861.88-3,021,979.50-1,223,009.16

Finding the Fourth Proportional to 2,189,861.88, 3,021,979.50 and 1,223,009.16

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Solution

The fourth proportional to 2,189,861.88, 3,021,979.50 and 1,223,009.16 is: 1,687,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,861.88 : 3,021,979.50 = 1,223,009.16 : x
  2. Step 2: Convert to fraction form
    2,189,861.88/3,021,979.50 = 1,223,009.16/x
  3. Step 3: Cross multiply
    2,189,861.88x = 3,021,979.50 × 1,223,009.16
  4. Step 4: Simplify right side
    2,189,861.88x = 3,695,908,609,832.22
  5. Step 5: Solve for x
    x = 3,695,908,609,832.22/2,189,861.88
  6. Step 6: Final answer
    x = 1,687,735.95

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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.