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Finding the Fourth Proportional to 546,662.69, 819,994.12 and 280,253.29

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Solution

The fourth proportional to 546,662.69, 819,994.12 and 280,253.29 is: 420,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,662.69 : 819,994.12 = 280,253.29 : x
  2. Step 2: Convert to fraction form
    546,662.69/819,994.12 = 280,253.29/x
  3. Step 3: Cross multiply
    546,662.69x = 819,994.12 × 280,253.29
  4. Step 4: Simplify right side
    546,662.69x = 229,806,046,997.05
  5. Step 5: Solve for x
    x = 229,806,046,997.05/546,662.69
  6. Step 6: Final answer
    x = 420,379.97

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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.