Home / 1,342,890-2,014,136.12-489,761.56

Finding the Fourth Proportional to 1,342,890, 2,014,136.12 and 489,761.56

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Solution

The fourth proportional to 1,342,890, 2,014,136.12 and 489,761.56 is: 734,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,890 : 2,014,136.12 = 489,761.56 : x
  2. Step 2: Convert to fraction form
    1,342,890/2,014,136.12 = 489,761.56/x
  3. Step 3: Cross multiply
    1,342,890x = 2,014,136.12 × 489,761.56
  4. Step 4: Simplify right side
    1,342,890x = 986,446,448,183.55
  5. Step 5: Solve for x
    x = 986,446,448,183.55/1,342,890
  6. Step 6: Final answer
    x = 734,569.81

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Double scale
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Similar ratio
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1.5x scale

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.