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Finding the Fourth Proportional to 797.99, 1,197.01 and 489.65

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Solution

The fourth proportional to 797.99, 1,197.01 and 489.65 is: 734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.99 : 1,197.01 = 489.65 : x
  2. Step 2: Convert to fraction form
    797.99/1,197.01 = 489.65/x
  3. Step 3: Cross multiply
    797.99x = 1,197.01 × 489.65
  4. Step 4: Simplify right side
    797.99x = 586,110.57
  5. Step 5: Solve for x
    x = 586,110.57/797.99
  6. Step 6: Final answer
    x = 734.49

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Double scale
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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.