Home / 831,529.86-1,147,511.30-449,556.54

Finding the Fourth Proportional to 831,529.86, 1,147,511.30 and 449,556.54

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Solution

The fourth proportional to 831,529.86, 1,147,511.30 and 449,556.54 is: 620,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,529.86 : 1,147,511.30 = 449,556.54 : x
  2. Step 2: Convert to fraction form
    831,529.86/1,147,511.30 = 449,556.54/x
  3. Step 3: Cross multiply
    831,529.86x = 1,147,511.30 × 449,556.54
  4. Step 4: Simplify right side
    831,529.86x = 515,871,207,391.12
  5. Step 5: Solve for x
    x = 515,871,207,391.12/831,529.86
  6. Step 6: Final answer
    x = 620,388.07

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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.