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Finding the Fourth Proportional to 664,800.30, 996,552.45 and 380,198.70

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Solution

The fourth proportional to 664,800.30, 996,552.45 and 380,198.70 is: 569,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,800.30 : 996,552.45 = 380,198.70 : x
  2. Step 2: Convert to fraction form
    664,800.30/996,552.45 = 380,198.70/x
  3. Step 3: Cross multiply
    664,800.30x = 996,552.45 × 380,198.70
  4. Step 4: Simplify right side
    664,800.30x = 378,887,945,971.82
  5. Step 5: Solve for x
    x = 378,887,945,971.82/664,800.30
  6. Step 6: Final answer
    x = 569,927.46

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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.