Home / 831,600.30-1,147,610.09-449,627.10

Finding the Fourth Proportional to 831,600.30, 1,147,610.09 and 449,627.10

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Solution

The fourth proportional to 831,600.30, 1,147,610.09 and 449,627.10 is: 620,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,600.30 : 1,147,610.09 = 449,627.10 : x
  2. Step 2: Convert to fraction form
    831,600.30/1,147,610.09 = 449,627.10/x
  3. Step 3: Cross multiply
    831,600.30x = 1,147,610.09 × 449,627.10
  4. Step 4: Simplify right side
    831,600.30x = 515,996,596,697.44
  5. Step 5: Solve for x
    x = 515,996,596,697.44/831,600.30
  6. Step 6: Final answer
    x = 620,486.30

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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.