Home / 2,189,204.73-3,021,289.34-1,222,521.86

Finding the Fourth Proportional to 2,189,204.73, 3,021,289.34 and 1,222,521.86

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Solution

The fourth proportional to 2,189,204.73, 3,021,289.34 and 1,222,521.86 is: 1,687,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,204.73 : 3,021,289.34 = 1,222,521.86 : x
  2. Step 2: Convert to fraction form
    2,189,204.73/3,021,289.34 = 1,222,521.86/x
  3. Step 3: Cross multiply
    2,189,204.73x = 3,021,289.34 × 1,222,521.86
  4. Step 4: Simplify right side
    2,189,204.73x = 3,693,592,242,315.92
  5. Step 5: Solve for x
    x = 3,693,592,242,315.92/2,189,204.73
  6. Step 6: Final answer
    x = 1,687,184.48

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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.