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Finding the Fourth Proportional to 664,360.72, 996,909.72 and 270,346

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Solution

The fourth proportional to 664,360.72, 996,909.72 and 270,346 is: 405,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,360.72 : 996,909.72 = 270,346 : x
  2. Step 2: Convert to fraction form
    664,360.72/996,909.72 = 270,346/x
  3. Step 3: Cross multiply
    664,360.72x = 996,909.72 × 270,346
  4. Step 4: Simplify right side
    664,360.72x = 269,510,555,163.12
  5. Step 5: Solve for x
    x = 269,510,555,163.12/664,360.72
  6. Step 6: Final answer
    x = 405,669.01

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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.