Home / 855,667.97-1,284,763.58-477,327.90

Finding the Fourth Proportional to 855,667.97, 1,284,763.58 and 477,327.90

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Solution

The fourth proportional to 855,667.97, 1,284,763.58 and 477,327.90 is: 716,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,667.97 : 1,284,763.58 = 477,327.90 : x
  2. Step 2: Convert to fraction form
    855,667.97/1,284,763.58 = 477,327.90/x
  3. Step 3: Cross multiply
    855,667.97x = 1,284,763.58 × 477,327.90
  4. Step 4: Simplify right side
    855,667.97x = 613,253,505,859.09
  5. Step 5: Solve for x
    x = 613,253,505,859.09/855,667.97
  6. Step 6: Final answer
    x = 716,695.64

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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.