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Finding the Fourth Proportional to 490,185.20, 735,907.49 and 377,936.72

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Solution

The fourth proportional to 490,185.20, 735,907.49 and 377,936.72 is: 567,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,185.20 : 735,907.49 = 377,936.72 : x
  2. Step 2: Convert to fraction form
    490,185.20/735,907.49 = 377,936.72/x
  3. Step 3: Cross multiply
    490,185.20x = 735,907.49 × 377,936.72
  4. Step 4: Simplify right side
    490,185.20x = 278,126,457,424.81
  5. Step 5: Solve for x
    x = 278,126,457,424.81/490,185.20
  6. Step 6: Final answer
    x = 567,390.57

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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.