Home / 792,485.40-1,188,728.10-260,023.80

Finding the Fourth Proportional to 792,485.40, 1,188,728.10 and 260,023.80

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Solution

The fourth proportional to 792,485.40, 1,188,728.10 and 260,023.80 is: 390,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,485.40 : 1,188,728.10 = 260,023.80 : x
  2. Step 2: Convert to fraction form
    792,485.40/1,188,728.10 = 260,023.80/x
  3. Step 3: Cross multiply
    792,485.40x = 1,188,728.10 × 260,023.80
  4. Step 4: Simplify right side
    792,485.40x = 309,097,597,728.78
  5. Step 5: Solve for x
    x = 309,097,597,728.78/792,485.40
  6. Step 6: Final answer
    x = 390,035.70

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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.