Home / 547,183.12-821,034.60-378,962.32

Finding the Fourth Proportional to 547,183.12, 821,034.60 and 378,962.32

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Solution

The fourth proportional to 547,183.12, 821,034.60 and 378,962.32 is: 568,623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,183.12 : 821,034.60 = 378,962.32 : x
  2. Step 2: Convert to fraction form
    547,183.12/821,034.60 = 378,962.32/x
  3. Step 3: Cross multiply
    547,183.12x = 821,034.60 × 378,962.32
  4. Step 4: Simplify right side
    547,183.12x = 311,141,176,816.27
  5. Step 5: Solve for x
    x = 311,141,176,816.27/547,183.12
  6. Step 6: Final answer
    x = 568,623.49

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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.