Home / 1,149,789.36-1,586,606.40-640,480.80

Finding the Fourth Proportional to 1,149,789.36, 1,586,606.40 and 640,480.80

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Solution

The fourth proportional to 1,149,789.36, 1,586,606.40 and 640,480.80 is: 883,806.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,789.36 : 1,586,606.40 = 640,480.80 : x
  2. Step 2: Convert to fraction form
    1,149,789.36/1,586,606.40 = 640,480.80/x
  3. Step 3: Cross multiply
    1,149,789.36x = 1,586,606.40 × 640,480.80
  4. Step 4: Simplify right side
    1,149,789.36x = 1,016,190,936,357.12
  5. Step 5: Solve for x
    x = 1,016,190,936,357.12/1,149,789.36
  6. Step 6: Final answer
    x = 883,806.18

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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.