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Finding the Fourth Proportional to 478,754.40, 660,672.84 and 263,914.44

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Solution

The fourth proportional to 478,754.40, 660,672.84 and 263,914.44 is: 364,197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,754.40 : 660,672.84 = 263,914.44 : x
  2. Step 2: Convert to fraction form
    478,754.40/660,672.84 = 263,914.44/x
  3. Step 3: Cross multiply
    478,754.40x = 660,672.84 × 263,914.44
  4. Step 4: Simplify right side
    478,754.40x = 174,361,102,591.81
  5. Step 5: Solve for x
    x = 174,361,102,591.81/478,754.40
  6. Step 6: Final answer
    x = 364,197.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.