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Finding the Fourth Proportional to 486,497.53, 671,433.87 and 271,651.51

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Solution

The fourth proportional to 486,497.53, 671,433.87 and 271,651.51 is: 374,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,497.53 : 671,433.87 = 271,651.51 : x
  2. Step 2: Convert to fraction form
    486,497.53/671,433.87 = 271,651.51/x
  3. Step 3: Cross multiply
    486,497.53x = 671,433.87 × 271,651.51
  4. Step 4: Simplify right side
    486,497.53x = 182,396,024,650.64
  5. Step 5: Solve for x
    x = 182,396,024,650.64/486,497.53
  6. Step 6: Final answer
    x = 374,916.65

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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.