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Finding the Fourth Proportional to 659,060.46, 987,911.91 and 259,539.30

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Solution

The fourth proportional to 659,060.46, 987,911.91 and 259,539.30 is: 389,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,060.46 : 987,911.91 = 259,539.30 : x
  2. Step 2: Convert to fraction form
    659,060.46/987,911.91 = 259,539.30/x
  3. Step 3: Cross multiply
    659,060.46x = 987,911.91 × 259,539.30
  4. Step 4: Simplify right side
    659,060.46x = 256,401,965,583.06
  5. Step 5: Solve for x
    x = 256,401,965,583.06/659,060.46
  6. Step 6: Final answer
    x = 389,041.65

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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.