Home / 2,172,998.40-3,258,201.60-1,332,153.60

Finding the Fourth Proportional to 2,172,998.40, 3,258,201.60 and 1,332,153.60

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Solution

The fourth proportional to 2,172,998.40, 3,258,201.60 and 1,332,153.60 is: 1,997,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,998.40 : 3,258,201.60 = 1,332,153.60 : x
  2. Step 2: Convert to fraction form
    2,172,998.40/3,258,201.60 = 1,332,153.60/x
  3. Step 3: Cross multiply
    2,172,998.40x = 3,258,201.60 × 1,332,153.60
  4. Step 4: Simplify right side
    2,172,998.40x = 4,340,424,990,965.76
  5. Step 5: Solve for x
    x = 4,340,424,990,965.76/2,172,998.40
  6. Step 6: Final answer
    x = 1,997,435.89

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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.