Home / 891,025.60-1,336,279.20-491,857.60

Finding the Fourth Proportional to 891,025.60, 1,336,279.20 and 491,857.60

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Solution

The fourth proportional to 891,025.60, 1,336,279.20 and 491,857.60 is: 737,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,025.60 : 1,336,279.20 = 491,857.60 : x
  2. Step 2: Convert to fraction form
    891,025.60/1,336,279.20 = 491,857.60/x
  3. Step 3: Cross multiply
    891,025.60x = 1,336,279.20 × 491,857.60
  4. Step 4: Simplify right side
    891,025.60x = 657,259,080,241.92
  5. Step 5: Solve for x
    x = 657,259,080,241.92/891,025.60
  6. Step 6: Final answer
    x = 737,643.32

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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.