Home / 890,996.10-1,336,494.15-491,431.20

Finding the Fourth Proportional to 890,996.10, 1,336,494.15 and 491,431.20

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Solution

The fourth proportional to 890,996.10, 1,336,494.15 and 491,431.20 is: 737,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,996.10 : 1,336,494.15 = 491,431.20 : x
  2. Step 2: Convert to fraction form
    890,996.10/1,336,494.15 = 491,431.20/x
  3. Step 3: Cross multiply
    890,996.10x = 1,336,494.15 × 491,431.20
  4. Step 4: Simplify right side
    890,996.10x = 656,794,923,927.48
  5. Step 5: Solve for x
    x = 656,794,923,927.48/890,996.10
  6. Step 6: Final answer
    x = 737,146.80

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Half scale
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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.