Home / 831,874.80-1,247,812.20-726,898.80

Finding the Fourth Proportional to 831,874.80, 1,247,812.20 and 726,898.80

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Solution

The fourth proportional to 831,874.80, 1,247,812.20 and 726,898.80 is: 1,090,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,874.80 : 1,247,812.20 = 726,898.80 : x
  2. Step 2: Convert to fraction form
    831,874.80/1,247,812.20 = 726,898.80/x
  3. Step 3: Cross multiply
    831,874.80x = 1,247,812.20 × 726,898.80
  4. Step 4: Simplify right side
    831,874.80x = 907,033,190,805.36
  5. Step 5: Solve for x
    x = 907,033,190,805.36/831,874.80
  6. Step 6: Final answer
    x = 1,090,348.20

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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.