Home / 547,176.98-821,054.37-388,279.73

Finding the Fourth Proportional to 547,176.98, 821,054.37 and 388,279.73

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Solution

The fourth proportional to 547,176.98, 821,054.37 and 388,279.73 is: 582,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,176.98 : 821,054.37 = 388,279.73 : x
  2. Step 2: Convert to fraction form
    547,176.98/821,054.37 = 388,279.73/x
  3. Step 3: Cross multiply
    547,176.98x = 821,054.37 × 388,279.73
  4. Step 4: Simplify right side
    547,176.98x = 318,798,769,098.92
  5. Step 5: Solve for x
    x = 318,798,769,098.92/547,176.98
  6. Step 6: Final answer
    x = 582,624.60

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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.