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Finding the Fourth Proportional to 486,564.66, 671,457.87 and 271,704.87

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Solution

The fourth proportional to 486,564.66, 671,457.87 and 271,704.87 is: 374,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,564.66 : 671,457.87 = 271,704.87 : x
  2. Step 2: Convert to fraction form
    486,564.66/671,457.87 = 271,704.87/x
  3. Step 3: Cross multiply
    486,564.66x = 671,457.87 × 271,704.87
  4. Step 4: Simplify right side
    486,564.66x = 182,438,373,278.83
  5. Step 5: Solve for x
    x = 182,438,373,278.83/486,564.66
  6. Step 6: Final answer
    x = 374,951.96

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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.