Home / 572,072.88-789,372.90-342,576.42

Finding the Fourth Proportional to 572,072.88, 789,372.90 and 342,576.42

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Solution

The fourth proportional to 572,072.88, 789,372.90 and 342,576.42 is: 472,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,072.88 : 789,372.90 = 342,576.42 : x
  2. Step 2: Convert to fraction form
    572,072.88/789,372.90 = 342,576.42/x
  3. Step 3: Cross multiply
    572,072.88x = 789,372.90 × 342,576.42
  4. Step 4: Simplify right side
    572,072.88x = 270,420,542,127.02
  5. Step 5: Solve for x
    x = 270,420,542,127.02/572,072.88
  6. Step 6: Final answer
    x = 472,702.96

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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.