Home / 1,123,255.80-1,550,371.56-640,107.60

Finding the Fourth Proportional to 1,123,255.80, 1,550,371.56 and 640,107.60

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Solution

The fourth proportional to 1,123,255.80, 1,550,371.56 and 640,107.60 is: 883,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,255.80 : 1,550,371.56 = 640,107.60 : x
  2. Step 2: Convert to fraction form
    1,123,255.80/1,550,371.56 = 640,107.60/x
  3. Step 3: Cross multiply
    1,123,255.80x = 1,550,371.56 × 640,107.60
  4. Step 4: Simplify right side
    1,123,255.80x = 992,404,618,379.86
  5. Step 5: Solve for x
    x = 992,404,618,379.86/1,123,255.80
  6. Step 6: Final answer
    x = 883,507.23

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1.5x scale

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.