Home / 484,990.15-669,286.58-281,159.22

Finding the Fourth Proportional to 484,990.15, 669,286.58 and 281,159.22

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Solution

The fourth proportional to 484,990.15, 669,286.58 and 281,159.22 is: 387,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,990.15 : 669,286.58 = 281,159.22 : x
  2. Step 2: Convert to fraction form
    484,990.15/669,286.58 = 281,159.22/x
  3. Step 3: Cross multiply
    484,990.15x = 669,286.58 × 281,159.22
  4. Step 4: Simplify right side
    484,990.15x = 188,176,092,789.27
  5. Step 5: Solve for x
    x = 188,176,092,789.27/484,990.15
  6. Step 6: Final answer
    x = 387,999.82

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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.