Home / 890,991.60-1,336,228.20-491,823.60

Finding the Fourth Proportional to 890,991.60, 1,336,228.20 and 491,823.60

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Solution

The fourth proportional to 890,991.60, 1,336,228.20 and 491,823.60 is: 737,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,991.60 : 1,336,228.20 = 491,823.60 : x
  2. Step 2: Convert to fraction form
    890,991.60/1,336,228.20 = 491,823.60/x
  3. Step 3: Cross multiply
    890,991.60x = 1,336,228.20 × 491,823.60
  4. Step 4: Simplify right side
    890,991.60x = 657,188,563,745.52
  5. Step 5: Solve for x
    x = 657,188,563,745.52/890,991.60
  6. Step 6: Final answer
    x = 737,592.32

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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.