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Finding the Fourth Proportional to 495,808.62, 743,817.42 and 259,087.74

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Solution

The fourth proportional to 495,808.62, 743,817.42 and 259,087.74 is: 388,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,808.62 : 743,817.42 = 259,087.74 : x
  2. Step 2: Convert to fraction form
    495,808.62/743,817.42 = 259,087.74/x
  3. Step 3: Cross multiply
    495,808.62x = 743,817.42 × 259,087.74
  4. Step 4: Simplify right side
    495,808.62x = 192,713,974,320.43
  5. Step 5: Solve for x
    x = 192,713,974,320.43/495,808.62
  6. Step 6: Final answer
    x = 388,686.21

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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.