Home / 497,837.72-686,997.78-271,478.36

Finding the Fourth Proportional to 497,837.72, 686,997.78 and 271,478.36

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Solution

The fourth proportional to 497,837.72, 686,997.78 and 271,478.36 is: 374,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,837.72 : 686,997.78 = 271,478.36 : x
  2. Step 2: Convert to fraction form
    497,837.72/686,997.78 = 271,478.36/x
  3. Step 3: Cross multiply
    497,837.72x = 686,997.78 × 271,478.36
  4. Step 4: Simplify right side
    497,837.72x = 186,505,030,638.04
  5. Step 5: Solve for x
    x = 186,505,030,638.04/497,837.72
  6. Step 6: Final answer
    x = 374,630.17

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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.