Home / 931,893.90-1,397,840.76-300,900.66

Finding the Fourth Proportional to 931,893.90, 1,397,840.76 and 300,900.66

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Solution

The fourth proportional to 931,893.90, 1,397,840.76 and 300,900.66 is: 451,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,893.90 : 1,397,840.76 = 300,900.66 : x
  2. Step 2: Convert to fraction form
    931,893.90/1,397,840.76 = 300,900.66/x
  3. Step 3: Cross multiply
    931,893.90x = 1,397,840.76 × 300,900.66
  4. Step 4: Simplify right side
    931,893.90x = 420,611,207,258.90
  5. Step 5: Solve for x
    x = 420,611,207,258.90/931,893.90
  6. Step 6: Final answer
    x = 451,350.96

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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.