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Finding the Fourth Proportional to 486,297.54, 671,088.94 and 271,435.74

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Solution

The fourth proportional to 486,297.54, 671,088.94 and 271,435.74 is: 374,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,297.54 : 671,088.94 = 271,435.74 : x
  2. Step 2: Convert to fraction form
    486,297.54/671,088.94 = 271,435.74/x
  3. Step 3: Cross multiply
    486,297.54x = 671,088.94 × 271,435.74
  4. Step 4: Simplify right side
    486,297.54x = 182,157,523,034.72
  5. Step 5: Solve for x
    x = 182,157,523,034.72/486,297.54
  6. Step 6: Final answer
    x = 374,580.39

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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.