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Finding the Fourth Proportional to 486,393.58, 671,153.73 and 271,528.93

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Solution

The fourth proportional to 486,393.58, 671,153.73 and 271,528.93 is: 374,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,393.58 : 671,153.73 = 271,528.93 : x
  2. Step 2: Convert to fraction form
    486,393.58/671,153.73 = 271,528.93/x
  3. Step 3: Cross multiply
    486,393.58x = 671,153.73 × 271,528.93
  4. Step 4: Simplify right side
    486,393.58x = 182,237,654,172.41
  5. Step 5: Solve for x
    x = 182,237,654,172.41/486,393.58
  6. Step 6: Final answer
    x = 374,671.18

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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.