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Finding the Fourth Proportional to 482,599.87, 666,019.38 and 278,659.39

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Solution

The fourth proportional to 482,599.87, 666,019.38 and 278,659.39 is: 384,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,599.87 : 666,019.38 = 278,659.39 : x
  2. Step 2: Convert to fraction form
    482,599.87/666,019.38 = 278,659.39/x
  3. Step 3: Cross multiply
    482,599.87x = 666,019.38 × 278,659.39
  4. Step 4: Simplify right side
    482,599.87x = 185,592,553,462.33
  5. Step 5: Solve for x
    x = 185,592,553,462.33/482,599.87
  6. Step 6: Final answer
    x = 384,568.18

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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.