Home / 792,816.40-1,190,002.20-393,907.60

Finding the Fourth Proportional to 792,816.40, 1,190,002.20 and 393,907.60

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Solution

The fourth proportional to 792,816.40, 1,190,002.20 and 393,907.60 is: 591,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,816.40 : 1,190,002.20 = 393,907.60 : x
  2. Step 2: Convert to fraction form
    792,816.40/1,190,002.20 = 393,907.60/x
  3. Step 3: Cross multiply
    792,816.40x = 1,190,002.20 × 393,907.60
  4. Step 4: Simplify right side
    792,816.40x = 468,750,910,596.72
  5. Step 5: Solve for x
    x = 468,750,910,596.72/792,816.40
  6. Step 6: Final answer
    x = 591,247.75

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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.