Home / 2,661,261.99-3,991,892.54-639,505.89

Finding the Fourth Proportional to 2,661,261.99, 3,991,892.54 and 639,505.89

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Solution

The fourth proportional to 2,661,261.99, 3,991,892.54 and 639,505.89 is: 959,258.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,261.99 : 3,991,892.54 = 639,505.89 : x
  2. Step 2: Convert to fraction form
    2,661,261.99/3,991,892.54 = 639,505.89/x
  3. Step 3: Cross multiply
    2,661,261.99x = 3,991,892.54 × 639,505.89
  4. Step 4: Simplify right side
    2,661,261.99x = 2,552,838,788,379.53
  5. Step 5: Solve for x
    x = 2,552,838,788,379.53/2,661,261.99
  6. Step 6: Final answer
    x = 959,258.73

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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.