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Finding the Fourth Proportional to 544,820.40, 817,230.60 and 394,354.80

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Solution

The fourth proportional to 544,820.40, 817,230.60 and 394,354.80 is: 591,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,820.40 : 817,230.60 = 394,354.80 : x
  2. Step 2: Convert to fraction form
    544,820.40/817,230.60 = 394,354.80/x
  3. Step 3: Cross multiply
    544,820.40x = 817,230.60 × 394,354.80
  4. Step 4: Simplify right side
    544,820.40x = 322,278,809,816.88
  5. Step 5: Solve for x
    x = 322,278,809,816.88/544,820.40
  6. Step 6: Final answer
    x = 591,532.20

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Similar ratio
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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.