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Finding the Fourth Proportional to 501,268.20, 751,902.30 and 440,250.90

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Solution

The fourth proportional to 501,268.20, 751,902.30 and 440,250.90 is: 660,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,268.20 : 751,902.30 = 440,250.90 : x
  2. Step 2: Convert to fraction form
    501,268.20/751,902.30 = 440,250.90/x
  3. Step 3: Cross multiply
    501,268.20x = 751,902.30 × 440,250.90
  4. Step 4: Simplify right side
    501,268.20x = 331,025,664,287.07
  5. Step 5: Solve for x
    x = 331,025,664,287.07/501,268.20
  6. Step 6: Final answer
    x = 660,376.35

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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.