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Finding the Fourth Proportional to 638,512.75, 957,773.93 and 283,431.31

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Solution

The fourth proportional to 638,512.75, 957,773.93 and 283,431.31 is: 425,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,512.75 : 957,773.93 = 283,431.31 : x
  2. Step 2: Convert to fraction form
    638,512.75/957,773.93 = 283,431.31/x
  3. Step 3: Cross multiply
    638,512.75x = 957,773.93 × 283,431.31
  4. Step 4: Simplify right side
    638,512.75x = 271,463,118,246.59
  5. Step 5: Solve for x
    x = 271,463,118,246.59/638,512.75
  6. Step 6: Final answer
    x = 425,149.10

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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.