Home / 2,909,912.68-4,015,787.70-1,603,217.80

Finding the Fourth Proportional to 2,909,912.68, 4,015,787.70 and 1,603,217.80

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Solution

The fourth proportional to 2,909,912.68, 4,015,787.70 and 1,603,217.80 is: 2,212,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,912.68 : 4,015,787.70 = 1,603,217.80 : x
  2. Step 2: Convert to fraction form
    2,909,912.68/4,015,787.70 = 1,603,217.80/x
  3. Step 3: Cross multiply
    2,909,912.68x = 4,015,787.70 × 1,603,217.80
  4. Step 4: Simplify right side
    2,909,912.68x = 6,438,182,321,661.06
  5. Step 5: Solve for x
    x = 6,438,182,321,661.06/2,909,912.68
  6. Step 6: Final answer
    x = 2,212,500.18

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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.