Home / 2,679,438.70-4,019,158.05-1,965,601.90

Finding the Fourth Proportional to 2,679,438.70, 4,019,158.05 and 1,965,601.90

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Solution

The fourth proportional to 2,679,438.70, 4,019,158.05 and 1,965,601.90 is: 2,948,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,438.70 : 4,019,158.05 = 1,965,601.90 : x
  2. Step 2: Convert to fraction form
    2,679,438.70/4,019,158.05 = 1,965,601.90/x
  3. Step 3: Cross multiply
    2,679,438.70x = 4,019,158.05 × 1,965,601.90
  4. Step 4: Simplify right side
    2,679,438.70x = 7,900,064,699,480.29
  5. Step 5: Solve for x
    x = 7,900,064,699,480.29/2,679,438.70
  6. Step 6: Final answer
    x = 2,948,402.85

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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.