Home / 610,947.26-917,091.30-485,394.56

Finding the Fourth Proportional to 610,947.26, 917,091.30 and 485,394.56

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Solution

The fourth proportional to 610,947.26, 917,091.30 and 485,394.56 is: 728,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,947.26 : 917,091.30 = 485,394.56 : x
  2. Step 2: Convert to fraction form
    610,947.26/917,091.30 = 485,394.56/x
  3. Step 3: Cross multiply
    610,947.26x = 917,091.30 × 485,394.56
  4. Step 4: Simplify right side
    610,947.26x = 445,151,128,043.33
  5. Step 5: Solve for x
    x = 445,151,128,043.33/610,947.26
  6. Step 6: Final answer
    x = 728,624.48

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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.