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Finding the Fourth Proportional to 557,524.08, 835,819.20 and 388,548.72

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Solution

The fourth proportional to 557,524.08, 835,819.20 and 388,548.72 is: 582,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,524.08 : 835,819.20 = 388,548.72 : x
  2. Step 2: Convert to fraction form
    557,524.08/835,819.20 = 388,548.72/x
  3. Step 3: Cross multiply
    557,524.08x = 835,819.20 × 388,548.72
  4. Step 4: Simplify right side
    557,524.08x = 324,756,480,311.42
  5. Step 5: Solve for x
    x = 324,756,480,311.42/557,524.08
  6. Step 6: Final answer
    x = 582,497.67

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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.