Home / 484,989.43-669,285.59-281,158.50

Finding the Fourth Proportional to 484,989.43, 669,285.59 and 281,158.50

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Solution

The fourth proportional to 484,989.43, 669,285.59 and 281,158.50 is: 387,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,989.43 : 669,285.59 = 281,158.50 : x
  2. Step 2: Convert to fraction form
    484,989.43/669,285.59 = 281,158.50/x
  3. Step 3: Cross multiply
    484,989.43x = 669,285.59 × 281,158.50
  4. Step 4: Simplify right side
    484,989.43x = 188,175,335,241.56
  5. Step 5: Solve for x
    x = 188,175,335,241.56/484,989.43
  6. Step 6: Final answer
    x = 387,998.84

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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.