Home / 513,581.74-708,757.82-281,022.64

Finding the Fourth Proportional to 513,581.74, 708,757.82 and 281,022.64

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Solution

The fourth proportional to 513,581.74, 708,757.82 and 281,022.64 is: 387,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,581.74 : 708,757.82 = 281,022.64 : x
  2. Step 2: Convert to fraction form
    513,581.74/708,757.82 = 281,022.64/x
  3. Step 3: Cross multiply
    513,581.74x = 708,757.82 × 281,022.64
  4. Step 4: Simplify right side
    513,581.74x = 199,176,993,697.05
  5. Step 5: Solve for x
    x = 199,176,993,697.05/513,581.74
  6. Step 6: Final answer
    x = 387,819.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.