Home / 1,107,450-1,660,040.16-840,645.72

Finding the Fourth Proportional to 1,107,450, 1,660,040.16 and 840,645.72

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Solution

The fourth proportional to 1,107,450, 1,660,040.16 and 840,645.72 is: 1,260,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,450 : 1,660,040.16 = 840,645.72 : x
  2. Step 2: Convert to fraction form
    1,107,450/1,660,040.16 = 840,645.72/x
  3. Step 3: Cross multiply
    1,107,450x = 1,660,040.16 × 840,645.72
  4. Step 4: Simplify right side
    1,107,450x = 1,395,505,655,532.12
  5. Step 5: Solve for x
    x = 1,395,505,655,532.12/1,107,450
  6. Step 6: Final answer
    x = 1,260,107.14

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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.