Home / 776,636.86-1,165,408.08-327,329.86

Finding the Fourth Proportional to 776,636.86, 1,165,408.08 and 327,329.86

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Solution

The fourth proportional to 776,636.86, 1,165,408.08 and 327,329.86 is: 491,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,636.86 : 1,165,408.08 = 327,329.86 : x
  2. Step 2: Convert to fraction form
    776,636.86/1,165,408.08 = 327,329.86/x
  3. Step 3: Cross multiply
    776,636.86x = 1,165,408.08 × 327,329.86
  4. Step 4: Simplify right side
    776,636.86x = 381,472,863,669.27
  5. Step 5: Solve for x
    x = 381,472,863,669.27/776,636.86
  6. Step 6: Final answer
    x = 491,185.63

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1.5x scale

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.