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Finding the Fourth Proportional to 653,273.91, 979,529.36 and 253,447.47

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Solution

The fourth proportional to 653,273.91, 979,529.36 and 253,447.47 is: 380,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,273.91 : 979,529.36 = 253,447.47 : x
  2. Step 2: Convert to fraction form
    653,273.91/979,529.36 = 253,447.47/x
  3. Step 3: Cross multiply
    653,273.91x = 979,529.36 × 253,447.47
  4. Step 4: Simplify right side
    653,273.91x = 248,259,236,815.48
  5. Step 5: Solve for x
    x = 248,259,236,815.48/653,273.91
  6. Step 6: Final answer
    x = 380,023.19

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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.