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Finding the Fourth Proportional to 480,380.73, 720,674.01 and 143,447.91

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Solution

The fourth proportional to 480,380.73, 720,674.01 and 143,447.91 is: 215,202.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,380.73 : 720,674.01 = 143,447.91 : x
  2. Step 2: Convert to fraction form
    480,380.73/720,674.01 = 143,447.91/x
  3. Step 3: Cross multiply
    480,380.73x = 720,674.01 × 143,447.91
  4. Step 4: Simplify right side
    480,380.73x = 103,379,180,525.82
  5. Step 5: Solve for x
    x = 103,379,180,525.82/480,380.73
  6. Step 6: Final answer
    x = 215,202.60

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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.