Home / 831,316.80-1,147,216.50-449,343.60

Finding the Fourth Proportional to 831,316.80, 1,147,216.50 and 449,343.60

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Solution

The fourth proportional to 831,316.80, 1,147,216.50 and 449,343.60 is: 620,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,316.80 : 1,147,216.50 = 449,343.60 : x
  2. Step 2: Convert to fraction form
    831,316.80/1,147,216.50 = 449,343.60/x
  3. Step 3: Cross multiply
    831,316.80x = 1,147,216.50 × 449,343.60
  4. Step 4: Simplify right side
    831,316.80x = 515,494,392,089.40
  5. Step 5: Solve for x
    x = 515,494,392,089.40/831,316.80
  6. Step 6: Final answer
    x = 620,093.80

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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.