Home / 831,840.72-1,147,993.34-469,132.24

Finding the Fourth Proportional to 831,840.72, 1,147,993.34 and 469,132.24

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Solution

The fourth proportional to 831,840.72, 1,147,993.34 and 469,132.24 is: 647,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,840.72 : 1,147,993.34 = 469,132.24 : x
  2. Step 2: Convert to fraction form
    831,840.72/1,147,993.34 = 469,132.24/x
  3. Step 3: Cross multiply
    831,840.72x = 1,147,993.34 × 469,132.24
  4. Step 4: Simplify right side
    831,840.72x = 538,560,687,099.28
  5. Step 5: Solve for x
    x = 538,560,687,099.28/831,840.72
  6. Step 6: Final answer
    x = 647,432.46

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Double scale
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1.5x scale

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.