Home / 1,190,729.70-1,643,200.43-646,861.14

Finding the Fourth Proportional to 1,190,729.70, 1,643,200.43 and 646,861.14

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Solution

The fourth proportional to 1,190,729.70, 1,643,200.43 and 646,861.14 is: 892,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,729.70 : 1,643,200.43 = 646,861.14 : x
  2. Step 2: Convert to fraction form
    1,190,729.70/1,643,200.43 = 646,861.14/x
  3. Step 3: Cross multiply
    1,190,729.70x = 1,643,200.43 × 646,861.14
  4. Step 4: Simplify right side
    1,190,729.70x = 1,062,922,500,163.98
  5. Step 5: Solve for x
    x = 1,062,922,500,163.98/1,190,729.70
  6. Step 6: Final answer
    x = 892,664.81

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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.