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Finding the Fourth Proportional to 490,089.40, 734,745.30 and 268,473.40

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Solution

The fourth proportional to 490,089.40, 734,745.30 and 268,473.40 is: 402,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,089.40 : 734,745.30 = 268,473.40 : x
  2. Step 2: Convert to fraction form
    490,089.40/734,745.30 = 268,473.40/x
  3. Step 3: Cross multiply
    490,089.40x = 734,745.30 × 268,473.40
  4. Step 4: Simplify right side
    490,089.40x = 197,259,568,825.02
  5. Step 5: Solve for x
    x = 197,259,568,825.02/490,089.40
  6. Step 6: Final answer
    x = 402,497.11

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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.