Home / 792,147.30-1,188,220.95-259,722.15

Finding the Fourth Proportional to 792,147.30, 1,188,220.95 and 259,722.15

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Solution

The fourth proportional to 792,147.30, 1,188,220.95 and 259,722.15 is: 389,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,147.30 : 1,188,220.95 = 259,722.15 : x
  2. Step 2: Convert to fraction form
    792,147.30/1,188,220.95 = 259,722.15/x
  3. Step 3: Cross multiply
    792,147.30x = 1,188,220.95 × 259,722.15
  4. Step 4: Simplify right side
    792,147.30x = 308,607,299,809.04
  5. Step 5: Solve for x
    x = 308,607,299,809.04/792,147.30
  6. Step 6: Final answer
    x = 389,583.23

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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.