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Finding the Fourth Proportional to 482,615, 666,009.24 and 281,449.88

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Solution

The fourth proportional to 482,615, 666,009.24 and 281,449.88 is: 388,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,615 : 666,009.24 = 281,449.88 : x
  2. Step 2: Convert to fraction form
    482,615/666,009.24 = 281,449.88/x
  3. Step 3: Cross multiply
    482,615x = 666,009.24 × 281,449.88
  4. Step 4: Simplify right side
    482,615x = 187,448,220,676.89
  5. Step 5: Solve for x
    x = 187,448,220,676.89/482,615
  6. Step 6: Final answer
    x = 388,401.15

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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.