Home / 890,902.38-1,336,550.13-259,865.58

Finding the Fourth Proportional to 890,902.38, 1,336,550.13 and 259,865.58

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Solution

The fourth proportional to 890,902.38, 1,336,550.13 and 259,865.58 is: 389,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,902.38 : 1,336,550.13 = 259,865.58 : x
  2. Step 2: Convert to fraction form
    890,902.38/1,336,550.13 = 259,865.58/x
  3. Step 3: Cross multiply
    890,902.38x = 1,336,550.13 × 259,865.58
  4. Step 4: Simplify right side
    890,902.38x = 347,323,374,731.53
  5. Step 5: Solve for x
    x = 347,323,374,731.53/890,902.38
  6. Step 6: Final answer
    x = 389,855.70

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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.