Home / 1,420,692.21-2,131,355.43-747,091.35

Finding the Fourth Proportional to 1,420,692.21, 2,131,355.43 and 747,091.35

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Solution

The fourth proportional to 1,420,692.21, 2,131,355.43 and 747,091.35 is: 1,120,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,692.21 : 2,131,355.43 = 747,091.35 : x
  2. Step 2: Convert to fraction form
    1,420,692.21/2,131,355.43 = 747,091.35/x
  3. Step 3: Cross multiply
    1,420,692.21x = 2,131,355.43 × 747,091.35
  4. Step 4: Simplify right side
    1,420,692.21x = 1,592,317,205,528.53
  5. Step 5: Solve for x
    x = 1,592,317,205,528.53/1,420,692.21
  6. Step 6: Final answer
    x = 1,120,803.78

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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.