Home / 1,433,692.49-1,978,496.28-789,108.12

Finding the Fourth Proportional to 1,433,692.49, 1,978,496.28 and 789,108.12

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Solution

The fourth proportional to 1,433,692.49, 1,978,496.28 and 789,108.12 is: 1,088,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,692.49 : 1,978,496.28 = 789,108.12 : x
  2. Step 2: Convert to fraction form
    1,433,692.49/1,978,496.28 = 789,108.12/x
  3. Step 3: Cross multiply
    1,433,692.49x = 1,978,496.28 × 789,108.12
  4. Step 4: Simplify right side
    1,433,692.49x = 1,561,247,479,937.79
  5. Step 5: Solve for x
    x = 1,561,247,479,937.79/1,433,692.49
  6. Step 6: Final answer
    x = 1,088,969.56

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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.