Home / 855,588.80-1,283,383.20-780,939.20

Finding the Fourth Proportional to 855,588.80, 1,283,383.20 and 780,939.20

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Solution

The fourth proportional to 855,588.80, 1,283,383.20 and 780,939.20 is: 1,171,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,588.80 : 1,283,383.20 = 780,939.20 : x
  2. Step 2: Convert to fraction form
    855,588.80/1,283,383.20 = 780,939.20/x
  3. Step 3: Cross multiply
    855,588.80x = 1,283,383.20 × 780,939.20
  4. Step 4: Simplify right side
    855,588.80x = 1,002,244,249,501.44
  5. Step 5: Solve for x
    x = 1,002,244,249,501.44/855,588.80
  6. Step 6: Final answer
    x = 1,171,408.80

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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.