Home / 610,942.14-917,083.61-485,389.44

Finding the Fourth Proportional to 610,942.14, 917,083.61 and 485,389.44

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Solution

The fourth proportional to 610,942.14, 917,083.61 and 485,389.44 is: 728,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,942.14 : 917,083.61 = 485,389.44 : x
  2. Step 2: Convert to fraction form
    610,942.14/917,083.61 = 485,389.44/x
  3. Step 3: Cross multiply
    610,942.14x = 917,083.61 × 485,389.44
  4. Step 4: Simplify right side
    610,942.14x = 445,142,699,891.08
  5. Step 5: Solve for x
    x = 445,142,699,891.08/610,942.14
  6. Step 6: Final answer
    x = 728,616.79

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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.