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Finding the Fourth Proportional to 408,967.80, 614,107.80 and 276,435.60

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Solution

The fourth proportional to 408,967.80, 614,107.80 and 276,435.60 is: 415,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,967.80 : 614,107.80 = 276,435.60 : x
  2. Step 2: Convert to fraction form
    408,967.80/614,107.80 = 276,435.60/x
  3. Step 3: Cross multiply
    408,967.80x = 614,107.80 × 276,435.60
  4. Step 4: Simplify right side
    408,967.80x = 169,761,258,157.68
  5. Step 5: Solve for x
    x = 169,761,258,157.68/408,967.80
  6. Step 6: Final answer
    x = 415,096.88

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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.