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Finding the Fourth Proportional to 486,704.10, 671,644.53 and 271,847.28

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Solution

The fourth proportional to 486,704.10, 671,644.53 and 271,847.28 is: 375,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,704.10 : 671,644.53 = 271,847.28 : x
  2. Step 2: Convert to fraction form
    486,704.10/671,644.53 = 271,847.28/x
  3. Step 3: Cross multiply
    486,704.10x = 671,644.53 × 271,847.28
  4. Step 4: Simplify right side
    486,704.10x = 182,584,738,607.38
  5. Step 5: Solve for x
    x = 182,584,738,607.38/486,704.10
  6. Step 6: Final answer
    x = 375,145.27

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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.