Home / 2,399,478-3,311,318.99-1,432,692.78

Finding the Fourth Proportional to 2,399,478, 3,311,318.99 and 1,432,692.78

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Solution

The fourth proportional to 2,399,478, 3,311,318.99 and 1,432,692.78 is: 1,977,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399,478 : 3,311,318.99 = 1,432,692.78 : x
  2. Step 2: Convert to fraction form
    2,399,478/3,311,318.99 = 1,432,692.78/x
  3. Step 3: Cross multiply
    2,399,478x = 3,311,318.99 × 1,432,692.78
  4. Step 4: Simplify right side
    2,399,478x = 4,744,102,809,249.89
  5. Step 5: Solve for x
    x = 4,744,102,809,249.89/2,399,478
  6. Step 6: Final answer
    x = 1,977,139.53

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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.