Home / 831,940.57-1,147,979.19-469,343.26

Finding the Fourth Proportional to 831,940.57, 1,147,979.19 and 469,343.26

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Solution

The fourth proportional to 831,940.57, 1,147,979.19 and 469,343.26 is: 647,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,940.57 : 1,147,979.19 = 469,343.26 : x
  2. Step 2: Convert to fraction form
    831,940.57/1,147,979.19 = 469,343.26/x
  3. Step 3: Cross multiply
    831,940.57x = 1,147,979.19 × 469,343.26
  4. Step 4: Simplify right side
    831,940.57x = 538,796,295,446.76
  5. Step 5: Solve for x
    x = 538,796,295,446.76/831,940.57
  6. Step 6: Final answer
    x = 647,637.96

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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.