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Finding the Fourth Proportional to 491,817.09, 737,825.08 and 207,508.34

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Solution

The fourth proportional to 491,817.09, 737,825.08 and 207,508.34 is: 311,304.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,817.09 : 737,825.08 = 207,508.34 : x
  2. Step 2: Convert to fraction form
    491,817.09/737,825.08 = 207,508.34/x
  3. Step 3: Cross multiply
    491,817.09x = 737,825.08 × 207,508.34
  4. Step 4: Simplify right side
    491,817.09x = 153,104,857,561.17
  5. Step 5: Solve for x
    x = 153,104,857,561.17/491,817.09
  6. Step 6: Final answer
    x = 311,304.47

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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.