Home / 831,996.09-1,247,997.78-263,379.98

Finding the Fourth Proportional to 831,996.09, 1,247,997.78 and 263,379.98

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Solution

The fourth proportional to 831,996.09, 1,247,997.78 and 263,379.98 is: 395,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,996.09 : 1,247,997.78 = 263,379.98 : x
  2. Step 2: Convert to fraction form
    831,996.09/1,247,997.78 = 263,379.98/x
  3. Step 3: Cross multiply
    831,996.09x = 1,247,997.78 × 263,379.98
  4. Step 4: Simplify right side
    831,996.09x = 328,697,624,096.46
  5. Step 5: Solve for x
    x = 328,697,624,096.46/831,996.09
  6. Step 6: Final answer
    x = 395,071.12

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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.