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Finding the Fourth Proportional to 512,478.06, 768,048.24 and 370,800.56

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Solution

The fourth proportional to 512,478.06, 768,048.24 and 370,800.56 is: 555,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,478.06 : 768,048.24 = 370,800.56 : x
  2. Step 2: Convert to fraction form
    512,478.06/768,048.24 = 370,800.56/x
  3. Step 3: Cross multiply
    512,478.06x = 768,048.24 × 370,800.56
  4. Step 4: Simplify right side
    512,478.06x = 284,792,717,499.01
  5. Step 5: Solve for x
    x = 284,792,717,499.01/512,478.06
  6. Step 6: Final answer
    x = 555,716.90

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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.