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Finding the Fourth Proportional to 511,241.20, 766,861.80 and 322,284.40

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Solution

The fourth proportional to 511,241.20, 766,861.80 and 322,284.40 is: 483,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,241.20 : 766,861.80 = 322,284.40 : x
  2. Step 2: Convert to fraction form
    511,241.20/766,861.80 = 322,284.40/x
  3. Step 3: Cross multiply
    511,241.20x = 766,861.80 × 322,284.40
  4. Step 4: Simplify right side
    511,241.20x = 247,147,595,095.92
  5. Step 5: Solve for x
    x = 247,147,595,095.92/511,241.20
  6. Step 6: Final answer
    x = 483,426.60

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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.