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Finding the Fourth Proportional to 575,414.71, 863,371.02 and 308,863.96

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Solution

The fourth proportional to 575,414.71, 863,371.02 and 308,863.96 is: 463,429.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,414.71 : 863,371.02 = 308,863.96 : x
  2. Step 2: Convert to fraction form
    575,414.71/863,371.02 = 308,863.96/x
  3. Step 3: Cross multiply
    575,414.71x = 863,371.02 × 308,863.96
  4. Step 4: Simplify right side
    575,414.71x = 266,664,192,186.44
  5. Step 5: Solve for x
    x = 266,664,192,186.44/575,414.71
  6. Step 6: Final answer
    x = 463,429.57

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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.