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Finding the Fourth Proportional to 653,157.15, 979,797.56 and 253,828.73

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Solution

The fourth proportional to 653,157.15, 979,797.56 and 253,828.73 is: 380,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,157.15 : 979,797.56 = 253,828.73 : x
  2. Step 2: Convert to fraction form
    653,157.15/979,797.56 = 253,828.73/x
  3. Step 3: Cross multiply
    653,157.15x = 979,797.56 × 253,828.73
  4. Step 4: Simplify right side
    653,157.15x = 248,700,764,143.77
  5. Step 5: Solve for x
    x = 248,700,764,143.77/653,157.15
  6. Step 6: Final answer
    x = 380,767.12

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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.