Home / 993,520.72-1,489,107.66-424,735.48

Finding the Fourth Proportional to 993,520.72, 1,489,107.66 and 424,735.48

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Solution

The fourth proportional to 993,520.72, 1,489,107.66 and 424,735.48 is: 636,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,520.72 : 1,489,107.66 = 424,735.48 : x
  2. Step 2: Convert to fraction form
    993,520.72/1,489,107.66 = 424,735.48/x
  3. Step 3: Cross multiply
    993,520.72x = 1,489,107.66 × 424,735.48
  4. Step 4: Simplify right side
    993,520.72x = 632,476,856,741.78
  5. Step 5: Solve for x
    x = 632,476,856,741.78/993,520.72
  6. Step 6: Final answer
    x = 636,601.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.