Home / 879,081.70-1,318,622.55-214,233.70

Finding the Fourth Proportional to 879,081.70, 1,318,622.55 and 214,233.70

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Solution

The fourth proportional to 879,081.70, 1,318,622.55 and 214,233.70 is: 321,350.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,081.70 : 1,318,622.55 = 214,233.70 : x
  2. Step 2: Convert to fraction form
    879,081.70/1,318,622.55 = 214,233.70/x
  3. Step 3: Cross multiply
    879,081.70x = 1,318,622.55 × 214,233.70
  4. Step 4: Simplify right side
    879,081.70x = 282,493,387,789.94
  5. Step 5: Solve for x
    x = 282,493,387,789.94/879,081.70
  6. Step 6: Final answer
    x = 321,350.55

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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.