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Finding the Fourth Proportional to 480,620.12, 720,505.90 and 181,310.89

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Solution

The fourth proportional to 480,620.12, 720,505.90 and 181,310.89 is: 271,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,620.12 : 720,505.90 = 181,310.89 : x
  2. Step 2: Convert to fraction form
    480,620.12/720,505.90 = 181,310.89/x
  3. Step 3: Cross multiply
    480,620.12x = 720,505.90 × 181,310.89
  4. Step 4: Simplify right side
    480,620.12x = 130,635,563,724.71
  5. Step 5: Solve for x
    x = 130,635,563,724.71/480,620.12
  6. Step 6: Final answer
    x = 271,806.27

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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.