Home / 547,177.12-821,025.60-378,956.32

Finding the Fourth Proportional to 547,177.12, 821,025.60 and 378,956.32

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Solution

The fourth proportional to 547,177.12, 821,025.60 and 378,956.32 is: 568,614.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,177.12 : 821,025.60 = 378,956.32 : x
  2. Step 2: Convert to fraction form
    547,177.12/821,025.60 = 378,956.32/x
  3. Step 3: Cross multiply
    547,177.12x = 821,025.60 × 378,956.32
  4. Step 4: Simplify right side
    547,177.12x = 311,132,840,001.79
  5. Step 5: Solve for x
    x = 311,132,840,001.79/547,177.12
  6. Step 6: Final answer
    x = 568,614.49

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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.