Home / 2,628,372.12-3,942,546.84-1,029,806.40

Finding the Fourth Proportional to 2,628,372.12, 3,942,546.84 and 1,029,806.40

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Solution

The fourth proportional to 2,628,372.12, 3,942,546.84 and 1,029,806.40 is: 1,544,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,372.12 : 3,942,546.84 = 1,029,806.40 : x
  2. Step 2: Convert to fraction form
    2,628,372.12/3,942,546.84 = 1,029,806.40/x
  3. Step 3: Cross multiply
    2,628,372.12x = 3,942,546.84 × 1,029,806.40
  4. Step 4: Simplify right side
    2,628,372.12x = 4,060,059,968,131.78
  5. Step 5: Solve for x
    x = 4,060,059,968,131.78/2,628,372.12
  6. Step 6: Final answer
    x = 1,544,705.16

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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.