Home / 831,724.44-1,147,779.77-449,751.21

Finding the Fourth Proportional to 831,724.44, 1,147,779.77 and 449,751.21

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Solution

The fourth proportional to 831,724.44, 1,147,779.77 and 449,751.21 is: 620,656.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,724.44 : 1,147,779.77 = 449,751.21 : x
  2. Step 2: Convert to fraction form
    831,724.44/1,147,779.77 = 449,751.21/x
  3. Step 3: Cross multiply
    831,724.44x = 1,147,779.77 × 449,751.21
  4. Step 4: Simplify right side
    831,724.44x = 516,215,338,122.27
  5. Step 5: Solve for x
    x = 516,215,338,122.27/831,724.44
  6. Step 6: Final answer
    x = 620,656.69

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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.