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Finding the Fourth Proportional to 547,505.66, 755,483.11 and 305,757.41

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Solution

The fourth proportional to 547,505.66, 755,483.11 and 305,757.41 is: 421,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,505.66 : 755,483.11 = 305,757.41 : x
  2. Step 2: Convert to fraction form
    547,505.66/755,483.11 = 305,757.41/x
  3. Step 3: Cross multiply
    547,505.66x = 755,483.11 × 305,757.41
  4. Step 4: Simplify right side
    547,505.66x = 230,994,554,470.54
  5. Step 5: Solve for x
    x = 230,994,554,470.54/547,505.66
  6. Step 6: Final answer
    x = 421,903.50

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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.