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Finding the Fourth Proportional to 559,759, 772,455.94 and 305,107.96

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Solution

The fourth proportional to 559,759, 772,455.94 and 305,107.96 is: 421,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,759 : 772,455.94 = 305,107.96 : x
  2. Step 2: Convert to fraction form
    559,759/772,455.94 = 305,107.96/x
  3. Step 3: Cross multiply
    559,759x = 772,455.94 × 305,107.96
  4. Step 4: Simplify right side
    559,759x = 235,682,456,043.28
  5. Step 5: Solve for x
    x = 235,682,456,043.28/559,759
  6. Step 6: Final answer
    x = 421,042.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.