Home / 890,906.40-1,336,359.54-259,820.16

Finding the Fourth Proportional to 890,906.40, 1,336,359.54 and 259,820.16

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Solution

The fourth proportional to 890,906.40, 1,336,359.54 and 259,820.16 is: 389,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,906.40 : 1,336,359.54 = 259,820.16 : x
  2. Step 2: Convert to fraction form
    890,906.40/1,336,359.54 = 259,820.16/x
  3. Step 3: Cross multiply
    890,906.40x = 1,336,359.54 × 259,820.16
  4. Step 4: Simplify right side
    890,906.40x = 347,213,149,500.33
  5. Step 5: Solve for x
    x = 347,213,149,500.33/890,906.40
  6. Step 6: Final answer
    x = 389,730.22

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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.