Home / 831,725.40-1,147,779.68-449,751.27

Finding the Fourth Proportional to 831,725.40, 1,147,779.68 and 449,751.27

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Solution

The fourth proportional to 831,725.40, 1,147,779.68 and 449,751.27 is: 620,656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,725.40 : 1,147,779.68 = 449,751.27 : x
  2. Step 2: Convert to fraction form
    831,725.40/1,147,779.68 = 449,751.27/x
  3. Step 3: Cross multiply
    831,725.40x = 1,147,779.68 × 449,751.27
  4. Step 4: Simplify right side
    831,725.40x = 516,215,366,511.44
  5. Step 5: Solve for x
    x = 516,215,366,511.44/831,725.40
  6. Step 6: Final answer
    x = 620,656.01

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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.