Home / 2,171,972.70-3,259,125.45-909,927.90

Finding the Fourth Proportional to 2,171,972.70, 3,259,125.45 and 909,927.90

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Solution

The fourth proportional to 2,171,972.70, 3,259,125.45 and 909,927.90 is: 1,365,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,972.70 : 3,259,125.45 = 909,927.90 : x
  2. Step 2: Convert to fraction form
    2,171,972.70/3,259,125.45 = 909,927.90/x
  3. Step 3: Cross multiply
    2,171,972.70x = 3,259,125.45 × 909,927.90
  4. Step 4: Simplify right side
    2,171,972.70x = 2,965,569,176,555.06
  5. Step 5: Solve for x
    x = 2,965,569,176,555.06/2,171,972.70
  6. Step 6: Final answer
    x = 1,365,380.50

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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.