Home / 1,003,978.71-1,505,939.34-284,318.73

Finding the Fourth Proportional to 1,003,978.71, 1,505,939.34 and 284,318.73

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Solution

The fourth proportional to 1,003,978.71, 1,505,939.34 and 284,318.73 is: 426,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,978.71 : 1,505,939.34 = 284,318.73 : x
  2. Step 2: Convert to fraction form
    1,003,978.71/1,505,939.34 = 284,318.73/x
  3. Step 3: Cross multiply
    1,003,978.71x = 1,505,939.34 × 284,318.73
  4. Step 4: Simplify right side
    1,003,978.71x = 428,166,760,605.84
  5. Step 5: Solve for x
    x = 428,166,760,605.84/1,003,978.71
  6. Step 6: Final answer
    x = 426,469.96

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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.