Home / 758,720.82-1,137,205.71-285,103.38

Finding the Fourth Proportional to 758,720.82, 1,137,205.71 and 285,103.38

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Solution

The fourth proportional to 758,720.82, 1,137,205.71 and 285,103.38 is: 427,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,720.82 : 1,137,205.71 = 285,103.38 : x
  2. Step 2: Convert to fraction form
    758,720.82/1,137,205.71 = 285,103.38/x
  3. Step 3: Cross multiply
    758,720.82x = 1,137,205.71 × 285,103.38
  4. Step 4: Simplify right side
    758,720.82x = 324,221,191,676.30
  5. Step 5: Solve for x
    x = 324,221,191,676.30/758,720.82
  6. Step 6: Final answer
    x = 427,326.08

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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.