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Finding the Fourth Proportional to 475,611.60, 655,996.26 and 303,647.79

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Solution

The fourth proportional to 475,611.60, 655,996.26 and 303,647.79 is: 418,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,611.60 : 655,996.26 = 303,647.79 : x
  2. Step 2: Convert to fraction form
    475,611.60/655,996.26 = 303,647.79/x
  3. Step 3: Cross multiply
    475,611.60x = 655,996.26 × 303,647.79
  4. Step 4: Simplify right side
    475,611.60x = 199,191,814,597.27
  5. Step 5: Solve for x
    x = 199,191,814,597.27/475,611.60
  6. Step 6: Final answer
    x = 418,811.94

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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.