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Finding the Fourth Proportional to 484,449.40, 726,674.10 and 188,961.40

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Solution

The fourth proportional to 484,449.40, 726,674.10 and 188,961.40 is: 283,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,449.40 : 726,674.10 = 188,961.40 : x
  2. Step 2: Convert to fraction form
    484,449.40/726,674.10 = 188,961.40/x
  3. Step 3: Cross multiply
    484,449.40x = 726,674.10 × 188,961.40
  4. Step 4: Simplify right side
    484,449.40x = 137,313,355,279.74
  5. Step 5: Solve for x
    x = 137,313,355,279.74/484,449.40
  6. Step 6: Final answer
    x = 283,442.10

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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.