Home / 3,115,505.10-4,672,912.05-871,869.90

Finding the Fourth Proportional to 3,115,505.10, 4,672,912.05 and 871,869.90

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Solution

The fourth proportional to 3,115,505.10, 4,672,912.05 and 871,869.90 is: 1,307,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,505.10 : 4,672,912.05 = 871,869.90 : x
  2. Step 2: Convert to fraction form
    3,115,505.10/4,672,912.05 = 871,869.90/x
  3. Step 3: Cross multiply
    3,115,505.10x = 4,672,912.05 × 871,869.90
  4. Step 4: Simplify right side
    3,115,505.10x = 4,074,171,361,742.30
  5. Step 5: Solve for x
    x = 4,074,171,361,742.30/3,115,505.10
  6. Step 6: Final answer
    x = 1,307,708.13

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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.