Home / 3,115,998.40-4,673,122.80-986,735.20

Finding the Fourth Proportional to 3,115,998.40, 4,673,122.80 and 986,735.20

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Solution

The fourth proportional to 3,115,998.40, 4,673,122.80 and 986,735.20 is: 1,479,825.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,998.40 : 4,673,122.80 = 986,735.20 : x
  2. Step 2: Convert to fraction form
    3,115,998.40/4,673,122.80 = 986,735.20/x
  3. Step 3: Cross multiply
    3,115,998.40x = 4,673,122.80 × 986,735.20
  4. Step 4: Simplify right side
    3,115,998.40x = 4,611,134,760,682.56
  5. Step 5: Solve for x
    x = 4,611,134,760,682.56/3,115,998.40
  6. Step 6: Final answer
    x = 1,479,825.78

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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.