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Finding the Fourth Proportional to 497,598.39, 686,685.80 and 271,243.89

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Solution

The fourth proportional to 497,598.39, 686,685.80 and 271,243.89 is: 374,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,598.39 : 686,685.80 = 271,243.89 : x
  2. Step 2: Convert to fraction form
    497,598.39/686,685.80 = 271,243.89/x
  3. Step 3: Cross multiply
    497,598.39x = 686,685.80 × 271,243.89
  4. Step 4: Simplify right side
    497,598.39x = 186,259,328,277.87
  5. Step 5: Solve for x
    x = 186,259,328,277.87/497,598.39
  6. Step 6: Final answer
    x = 374,316.58

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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.