Home / 947,794.62-1,421,691.94-379,431.60

Finding the Fourth Proportional to 947,794.62, 1,421,691.94 and 379,431.60

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Solution

The fourth proportional to 947,794.62, 1,421,691.94 and 379,431.60 is: 569,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,794.62 : 1,421,691.94 = 379,431.60 : x
  2. Step 2: Convert to fraction form
    947,794.62/1,421,691.94 = 379,431.60/x
  3. Step 3: Cross multiply
    947,794.62x = 1,421,691.94 × 379,431.60
  4. Step 4: Simplify right side
    947,794.62x = 539,434,847,501.30
  5. Step 5: Solve for x
    x = 539,434,847,501.30/947,794.62
  6. Step 6: Final answer
    x = 569,147.40

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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.