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Finding the Fourth Proportional to 454,422.48, 680,880.42 and 276,390.96

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Solution

The fourth proportional to 454,422.48, 680,880.42 and 276,390.96 is: 414,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,422.48 : 680,880.42 = 276,390.96 : x
  2. Step 2: Convert to fraction form
    454,422.48/680,880.42 = 276,390.96/x
  3. Step 3: Cross multiply
    454,422.48x = 680,880.42 × 276,390.96
  4. Step 4: Simplify right side
    454,422.48x = 188,189,192,929.00
  5. Step 5: Solve for x
    x = 188,189,192,929.00/454,422.48
  6. Step 6: Final answer
    x = 414,128.26

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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.