Home / 820,905.60-1,231,358.40-466,611.60

Finding the Fourth Proportional to 820,905.60, 1,231,358.40 and 466,611.60

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Solution

The fourth proportional to 820,905.60, 1,231,358.40 and 466,611.60 is: 699,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,905.60 : 1,231,358.40 = 466,611.60 : x
  2. Step 2: Convert to fraction form
    820,905.60/1,231,358.40 = 466,611.60/x
  3. Step 3: Cross multiply
    820,905.60x = 1,231,358.40 × 466,611.60
  4. Step 4: Simplify right side
    820,905.60x = 574,566,113,197.44
  5. Step 5: Solve for x
    x = 574,566,113,197.44/820,905.60
  6. Step 6: Final answer
    x = 699,917.40

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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.