Home / 785,825.20-1,178,910.60-253,255.60

Finding the Fourth Proportional to 785,825.20, 1,178,910.60 and 253,255.60

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Solution

The fourth proportional to 785,825.20, 1,178,910.60 and 253,255.60 is: 379,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,825.20 : 1,178,910.60 = 253,255.60 : x
  2. Step 2: Convert to fraction form
    785,825.20/1,178,910.60 = 253,255.60/x
  3. Step 3: Cross multiply
    785,825.20x = 1,178,910.60 × 253,255.60
  4. Step 4: Simplify right side
    785,825.20x = 298,565,711,349.36
  5. Step 5: Solve for x
    x = 298,565,711,349.36/785,825.20
  6. Step 6: Final answer
    x = 379,939.09

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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.