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Finding the Fourth Proportional to 497,941.89, 687,168 and 271,587.39

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Solution

The fourth proportional to 497,941.89, 687,168 and 271,587.39 is: 374,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,941.89 : 687,168 = 271,587.39 : x
  2. Step 2: Convert to fraction form
    497,941.89/687,168 = 271,587.39/x
  3. Step 3: Cross multiply
    497,941.89x = 687,168 × 271,587.39
  4. Step 4: Simplify right side
    497,941.89x = 186,626,163,611.52
  5. Step 5: Solve for x
    x = 186,626,163,611.52/497,941.89
  6. Step 6: Final answer
    x = 374,795.07

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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.