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Finding the Fourth Proportional to 511,233.70, 766,850.55 and 322,276.90

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Solution

The fourth proportional to 511,233.70, 766,850.55 and 322,276.90 is: 483,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,233.70 : 766,850.55 = 322,276.90 : x
  2. Step 2: Convert to fraction form
    511,233.70/766,850.55 = 322,276.90/x
  3. Step 3: Cross multiply
    511,233.70x = 766,850.55 × 322,276.90
  4. Step 4: Simplify right side
    511,233.70x = 247,138,218,017.30
  5. Step 5: Solve for x
    x = 247,138,218,017.30/511,233.70
  6. Step 6: Final answer
    x = 483,415.35

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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.