Home / 831,741.60-1,147,796.28-449,765.04

Finding the Fourth Proportional to 831,741.60, 1,147,796.28 and 449,765.04

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Solution

The fourth proportional to 831,741.60, 1,147,796.28 and 449,765.04 is: 620,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,741.60 : 1,147,796.28 = 449,765.04 : x
  2. Step 2: Convert to fraction form
    831,741.60/1,147,796.28 = 449,765.04/x
  3. Step 3: Cross multiply
    831,741.60x = 1,147,796.28 × 449,765.04
  4. Step 4: Simplify right side
    831,741.60x = 516,238,639,786.05
  5. Step 5: Solve for x
    x = 516,238,639,786.05/831,741.60
  6. Step 6: Final answer
    x = 620,671.90

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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.