Home / 321,924-482,478.96-281,844.81

Finding the Fourth Proportional to 321,924, 482,478.96 and 281,844.81

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Solution

The fourth proportional to 321,924, 482,478.96 and 281,844.81 is: 422,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,924 : 482,478.96 = 281,844.81 : x
  2. Step 2: Convert to fraction form
    321,924/482,478.96 = 281,844.81/x
  3. Step 3: Cross multiply
    321,924x = 482,478.96 × 281,844.81
  4. Step 4: Simplify right side
    321,924x = 135,984,190,810.20
  5. Step 5: Solve for x
    x = 135,984,190,810.20/321,924
  6. Step 6: Final answer
    x = 422,410.85

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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.