Home / 891,025.80-1,336,409.10-259,873.80

Finding the Fourth Proportional to 891,025.80, 1,336,409.10 and 259,873.80

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Solution

The fourth proportional to 891,025.80, 1,336,409.10 and 259,873.80 is: 389,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,025.80 : 1,336,409.10 = 259,873.80 : x
  2. Step 2: Convert to fraction form
    891,025.80/1,336,409.10 = 259,873.80/x
  3. Step 3: Cross multiply
    891,025.80x = 1,336,409.10 × 259,873.80
  4. Step 4: Simplify right side
    891,025.80x = 347,297,711,171.58
  5. Step 5: Solve for x
    x = 347,297,711,171.58/891,025.80
  6. Step 6: Final answer
    x = 389,772.90

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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.