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Finding the Fourth Proportional to 331,799.79, 495,277.43 and 284,717.44

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Solution

The fourth proportional to 331,799.79, 495,277.43 and 284,717.44 is: 424,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,799.79 : 495,277.43 = 284,717.44 : x
  2. Step 2: Convert to fraction form
    331,799.79/495,277.43 = 284,717.44/x
  3. Step 3: Cross multiply
    331,799.79x = 495,277.43 × 284,717.44
  4. Step 4: Simplify right side
    331,799.79x = 141,014,121,154.89
  5. Step 5: Solve for x
    x = 141,014,121,154.89/331,799.79
  6. Step 6: Final answer
    x = 424,997.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.