Home / 831,697.34-1,147,741.52-449,723.20

Finding the Fourth Proportional to 831,697.34, 1,147,741.52 and 449,723.20

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Solution

The fourth proportional to 831,697.34, 1,147,741.52 and 449,723.20 is: 620,617.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,697.34 : 1,147,741.52 = 449,723.20 : x
  2. Step 2: Convert to fraction form
    831,697.34/1,147,741.52 = 449,723.20/x
  3. Step 3: Cross multiply
    831,697.34x = 1,147,741.52 × 449,723.20
  4. Step 4: Simplify right side
    831,697.34x = 516,165,989,147.26
  5. Step 5: Solve for x
    x = 516,165,989,147.26/831,697.34
  6. Step 6: Final answer
    x = 620,617.58

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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.