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Finding the Fourth Proportional to 486,461.64, 671,310.53 and 271,605

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Solution

The fourth proportional to 486,461.64, 671,310.53 and 271,605 is: 374,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,461.64 : 671,310.53 = 271,605 : x
  2. Step 2: Convert to fraction form
    486,461.64/671,310.53 = 271,605/x
  3. Step 3: Cross multiply
    486,461.64x = 671,310.53 × 271,605
  4. Step 4: Simplify right side
    486,461.64x = 182,331,296,500.65
  5. Step 5: Solve for x
    x = 182,331,296,500.65/486,461.64
  6. Step 6: Final answer
    x = 374,811.25

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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.