Home / 786,000.20-1,179,000.30-336,644.60

Finding the Fourth Proportional to 786,000.20, 1,179,000.30 and 336,644.60

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Solution

The fourth proportional to 786,000.20, 1,179,000.30 and 336,644.60 is: 504,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,000.20 : 1,179,000.30 = 336,644.60 : x
  2. Step 2: Convert to fraction form
    786,000.20/1,179,000.30 = 336,644.60/x
  3. Step 3: Cross multiply
    786,000.20x = 1,179,000.30 × 336,644.60
  4. Step 4: Simplify right side
    786,000.20x = 396,904,084,393.38
  5. Step 5: Solve for x
    x = 396,904,084,393.38/786,000.20
  6. Step 6: Final answer
    x = 504,966.90

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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.