Home / 2,172,667.40-3,258,998.22-1,225,608.20

Finding the Fourth Proportional to 2,172,667.40, 3,258,998.22 and 1,225,608.20

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Solution

The fourth proportional to 2,172,667.40, 3,258,998.22 and 1,225,608.20 is: 1,838,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,667.40 : 3,258,998.22 = 1,225,608.20 : x
  2. Step 2: Convert to fraction form
    2,172,667.40/3,258,998.22 = 1,225,608.20/x
  3. Step 3: Cross multiply
    2,172,667.40x = 3,258,998.22 × 1,225,608.20
  4. Step 4: Simplify right side
    2,172,667.40x = 3,994,254,942,217.40
  5. Step 5: Solve for x
    x = 3,994,254,942,217.40/2,172,667.40
  6. Step 6: Final answer
    x = 1,838,410.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.