Home / 862,940.13-1,190,863.26-480,991.92

Finding the Fourth Proportional to 862,940.13, 1,190,863.26 and 480,991.92

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Solution

The fourth proportional to 862,940.13, 1,190,863.26 and 480,991.92 is: 663,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,940.13 : 1,190,863.26 = 480,991.92 : x
  2. Step 2: Convert to fraction form
    862,940.13/1,190,863.26 = 480,991.92/x
  3. Step 3: Cross multiply
    862,940.13x = 1,190,863.26 × 480,991.92
  4. Step 4: Simplify right side
    862,940.13x = 572,795,605,884.86
  5. Step 5: Solve for x
    x = 572,795,605,884.86/862,940.13
  6. Step 6: Final answer
    x = 663,772.13

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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.