Home / 853,671.93-1,280,606.31-285,128.48

Finding the Fourth Proportional to 853,671.93, 1,280,606.31 and 285,128.48

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Solution

The fourth proportional to 853,671.93, 1,280,606.31 and 285,128.48 is: 427,725.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,671.93 : 1,280,606.31 = 285,128.48 : x
  2. Step 2: Convert to fraction form
    853,671.93/1,280,606.31 = 285,128.48/x
  3. Step 3: Cross multiply
    853,671.93x = 1,280,606.31 × 285,128.48
  4. Step 4: Simplify right side
    853,671.93x = 365,137,324,245.68
  5. Step 5: Solve for x
    x = 365,137,324,245.68/853,671.93
  6. Step 6: Final answer
    x = 427,725.58

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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.