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Finding the Fourth Proportional to 499,795.92, 749,240.28 and 259,629.12

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Solution

The fourth proportional to 499,795.92, 749,240.28 and 259,629.12 is: 389,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,795.92 : 749,240.28 = 259,629.12 : x
  2. Step 2: Convert to fraction form
    499,795.92/749,240.28 = 259,629.12/x
  3. Step 3: Cross multiply
    499,795.92x = 749,240.28 × 259,629.12
  4. Step 4: Simplify right side
    499,795.92x = 194,524,594,564.95
  5. Step 5: Solve for x
    x = 194,524,594,564.95/499,795.92
  6. Step 6: Final answer
    x = 389,208.05

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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.