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Finding the Fourth Proportional to 628,835.40, 943,180.20 and 179,625.60

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Solution

The fourth proportional to 628,835.40, 943,180.20 and 179,625.60 is: 269,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,835.40 : 943,180.20 = 179,625.60 : x
  2. Step 2: Convert to fraction form
    628,835.40/943,180.20 = 179,625.60/x
  3. Step 3: Cross multiply
    628,835.40x = 943,180.20 × 179,625.60
  4. Step 4: Simplify right side
    628,835.40x = 169,419,309,333.12
  5. Step 5: Solve for x
    x = 169,419,309,333.12/628,835.40
  6. Step 6: Final answer
    x = 269,417.58

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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.