Home / 942,960.40-1,412,885.40-809,213.20

Finding the Fourth Proportional to 942,960.40, 1,412,885.40 and 809,213.20

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Solution

The fourth proportional to 942,960.40, 1,412,885.40 and 809,213.20 is: 1,212,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,960.40 : 1,412,885.40 = 809,213.20 : x
  2. Step 2: Convert to fraction form
    942,960.40/1,412,885.40 = 809,213.20/x
  3. Step 3: Cross multiply
    942,960.40x = 1,412,885.40 × 809,213.20
  4. Step 4: Simplify right side
    942,960.40x = 1,143,325,515,767.28
  5. Step 5: Solve for x
    x = 1,143,325,515,767.28/942,960.40
  6. Step 6: Final answer
    x = 1,212,485.19

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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.