Home / 3,124,806-4,312,692.44-1,978,992.88

Finding the Fourth Proportional to 3,124,806, 4,312,692.44 and 1,978,992.88

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Solution

The fourth proportional to 3,124,806, 4,312,692.44 and 1,978,992.88 is: 2,731,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124,806 : 4,312,692.44 = 1,978,992.88 : x
  2. Step 2: Convert to fraction form
    3,124,806/4,312,692.44 = 1,978,992.88/x
  3. Step 3: Cross multiply
    3,124,806x = 4,312,692.44 × 1,978,992.88
  4. Step 4: Simplify right side
    3,124,806x = 8,534,787,632,389.83
  5. Step 5: Solve for x
    x = 8,534,787,632,389.83/3,124,806
  6. Step 6: Final answer
    x = 2,731,301.60

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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.