Home / 1,107,399.80-1,661,099.70-629,102.90

Finding the Fourth Proportional to 1,107,399.80, 1,661,099.70 and 629,102.90

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Solution

The fourth proportional to 1,107,399.80, 1,661,099.70 and 629,102.90 is: 943,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,399.80 : 1,661,099.70 = 629,102.90 : x
  2. Step 2: Convert to fraction form
    1,107,399.80/1,661,099.70 = 629,102.90/x
  3. Step 3: Cross multiply
    1,107,399.80x = 1,661,099.70 × 629,102.90
  4. Step 4: Simplify right side
    1,107,399.80x = 1,045,002,638,459.13
  5. Step 5: Solve for x
    x = 1,045,002,638,459.13/1,107,399.80
  6. Step 6: Final answer
    x = 943,654.35

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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.