Home / 831,418.59-1,246,194.75-410,989.71

Finding the Fourth Proportional to 831,418.59, 1,246,194.75 and 410,989.71

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Solution

The fourth proportional to 831,418.59, 1,246,194.75 and 410,989.71 is: 616,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,418.59 : 1,246,194.75 = 410,989.71 : x
  2. Step 2: Convert to fraction form
    831,418.59/1,246,194.75 = 410,989.71/x
  3. Step 3: Cross multiply
    831,418.59x = 1,246,194.75 × 410,989.71
  4. Step 4: Simplify right side
    831,418.59x = 512,173,218,906.02
  5. Step 5: Solve for x
    x = 512,173,218,906.02/831,418.59
  6. Step 6: Final answer
    x = 616,023.29

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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.