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Finding the Fourth Proportional to 368,759.79, 553,402.13 and 284,604.03

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Solution

The fourth proportional to 368,759.79, 553,402.13 and 284,604.03 is: 427,108.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,759.79 : 553,402.13 = 284,604.03 : x
  2. Step 2: Convert to fraction form
    368,759.79/553,402.13 = 284,604.03/x
  3. Step 3: Cross multiply
    368,759.79x = 553,402.13 × 284,604.03
  4. Step 4: Simplify right side
    368,759.79x = 157,500,474,985.56
  5. Step 5: Solve for x
    x = 157,500,474,985.56/368,759.79
  6. Step 6: Final answer
    x = 427,108.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.