Home / 831,266.07-1,147,147.34-449,291.67

Finding the Fourth Proportional to 831,266.07, 1,147,147.34 and 449,291.67

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Solution

The fourth proportional to 831,266.07, 1,147,147.34 and 449,291.67 is: 620,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,266.07 : 1,147,147.34 = 449,291.67 : x
  2. Step 2: Convert to fraction form
    831,266.07/1,147,147.34 = 449,291.67/x
  3. Step 3: Cross multiply
    831,266.07x = 1,147,147.34 × 449,291.67
  4. Step 4: Simplify right side
    831,266.07x = 515,403,744,124.66
  5. Step 5: Solve for x
    x = 515,403,744,124.66/831,266.07
  6. Step 6: Final answer
    x = 620,022.59

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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.