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Finding the Fourth Proportional to 485,571.03, 728,378.42 and 351,814.11

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Solution

The fourth proportional to 485,571.03, 728,378.42 and 351,814.11 is: 527,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,571.03 : 728,378.42 = 351,814.11 : x
  2. Step 2: Convert to fraction form
    485,571.03/728,378.42 = 351,814.11/x
  3. Step 3: Cross multiply
    485,571.03x = 728,378.42 × 351,814.11
  4. Step 4: Simplify right side
    485,571.03x = 256,253,803,816.44
  5. Step 5: Solve for x
    x = 256,253,803,816.44/485,571.03
  6. Step 6: Final answer
    x = 527,737.01

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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.