Home / 2,171,888.70-3,258,999.45-909,843.90

Finding the Fourth Proportional to 2,171,888.70, 3,258,999.45 and 909,843.90

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Solution

The fourth proportional to 2,171,888.70, 3,258,999.45 and 909,843.90 is: 1,365,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,888.70 : 3,258,999.45 = 909,843.90 : x
  2. Step 2: Convert to fraction form
    2,171,888.70/3,258,999.45 = 909,843.90/x
  3. Step 3: Cross multiply
    2,171,888.70x = 3,258,999.45 × 909,843.90
  4. Step 4: Simplify right side
    2,171,888.70x = 2,965,180,769,685.86
  5. Step 5: Solve for x
    x = 2,965,180,769,685.86/2,171,888.70
  6. Step 6: Final answer
    x = 1,365,254.48

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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.