Home / 1,196,172.63-1,792,227.87-721,861.38

Finding the Fourth Proportional to 1,196,172.63, 1,792,227.87 and 721,861.38

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Solution

The fourth proportional to 1,196,172.63, 1,792,227.87 and 721,861.38 is: 1,081,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,172.63 : 1,792,227.87 = 721,861.38 : x
  2. Step 2: Convert to fraction form
    1,196,172.63/1,792,227.87 = 721,861.38/x
  3. Step 3: Cross multiply
    1,196,172.63x = 1,792,227.87 × 721,861.38
  4. Step 4: Simplify right side
    1,196,172.63x = 1,293,740,083,512.66
  5. Step 5: Solve for x
    x = 1,293,740,083,512.66/1,196,172.63
  6. Step 6: Final answer
    x = 1,081,566.37

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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.