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Finding the Fourth Proportional to 520,796.88, 781,195.32 and 494,202.96

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Solution

The fourth proportional to 520,796.88, 781,195.32 and 494,202.96 is: 741,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,796.88 : 781,195.32 = 494,202.96 : x
  2. Step 2: Convert to fraction form
    520,796.88/781,195.32 = 494,202.96/x
  3. Step 3: Cross multiply
    520,796.88x = 781,195.32 × 494,202.96
  4. Step 4: Simplify right side
    520,796.88x = 386,069,039,482.15
  5. Step 5: Solve for x
    x = 386,069,039,482.15/520,796.88
  6. Step 6: Final answer
    x = 741,304.44

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Double scale
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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.