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Finding the Fourth Proportional to 482,674.36, 666,086.34 and 278,768.20

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Solution

The fourth proportional to 482,674.36, 666,086.34 and 278,768.20 is: 384,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,674.36 : 666,086.34 = 278,768.20 : x
  2. Step 2: Convert to fraction form
    482,674.36/666,086.34 = 278,768.20/x
  3. Step 3: Cross multiply
    482,674.36x = 666,086.34 × 278,768.20
  4. Step 4: Simplify right side
    482,674.36x = 185,683,690,046.39
  5. Step 5: Solve for x
    x = 185,683,690,046.39/482,674.36
  6. Step 6: Final answer
    x = 384,697.65

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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.