Home / 831,812.88-1,247,887.80-270,696.72

Finding the Fourth Proportional to 831,812.88, 1,247,887.80 and 270,696.72

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Solution

The fourth proportional to 831,812.88, 1,247,887.80 and 270,696.72 is: 406,099.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,812.88 : 1,247,887.80 = 270,696.72 : x
  2. Step 2: Convert to fraction form
    831,812.88/1,247,887.80 = 270,696.72/x
  3. Step 3: Cross multiply
    831,812.88x = 1,247,887.80 × 270,696.72
  4. Step 4: Simplify right side
    831,812.88x = 337,799,134,388.02
  5. Step 5: Solve for x
    x = 337,799,134,388.02/831,812.88
  6. Step 6: Final answer
    x = 406,099.91

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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.