Home / 449,972.46-620,968.64-304,822.64

Finding the Fourth Proportional to 449,972.46, 620,968.64 and 304,822.64

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Solution

The fourth proportional to 449,972.46, 620,968.64 and 304,822.64 is: 420,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,972.46 : 620,968.64 = 304,822.64 : x
  2. Step 2: Convert to fraction form
    449,972.46/620,968.64 = 304,822.64/x
  3. Step 3: Cross multiply
    449,972.46x = 620,968.64 × 304,822.64
  4. Step 4: Simplify right side
    449,972.46x = 189,285,300,230.32
  5. Step 5: Solve for x
    x = 189,285,300,230.32/449,972.46
  6. Step 6: Final answer
    x = 420,659.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.