Home / 547,176.75-820,091.21-388,546.35

Finding the Fourth Proportional to 547,176.75, 820,091.21 and 388,546.35

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Solution

The fourth proportional to 547,176.75, 820,091.21 and 388,546.35 is: 582,340.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,176.75 : 820,091.21 = 388,546.35 : x
  2. Step 2: Convert to fraction form
    547,176.75/820,091.21 = 388,546.35/x
  3. Step 3: Cross multiply
    547,176.75x = 820,091.21 × 388,546.35
  4. Step 4: Simplify right side
    547,176.75x = 318,643,444,369.85
  5. Step 5: Solve for x
    x = 318,643,444,369.85/547,176.75
  6. Step 6: Final answer
    x = 582,340.98

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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.