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Finding the Fourth Proportional to 484,997.85, 669,297.21 and 281,166.93

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Solution

The fourth proportional to 484,997.85, 669,297.21 and 281,166.93 is: 388,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,997.85 : 669,297.21 = 281,166.93 : x
  2. Step 2: Convert to fraction form
    484,997.85/669,297.21 = 281,166.93/x
  3. Step 3: Cross multiply
    484,997.85x = 669,297.21 × 281,166.93
  4. Step 4: Simplify right side
    484,997.85x = 188,184,241,793.27
  5. Step 5: Solve for x
    x = 188,184,241,793.27/484,997.85
  6. Step 6: Final answer
    x = 388,010.47

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1.5x scale

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.