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Finding the Fourth Proportional to 938,491, 1,293,684.42 and 575,241.64

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Solution

The fourth proportional to 938,491, 1,293,684.42 and 575,241.64 is: 792,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,491 : 1,293,684.42 = 575,241.64 : x
  2. Step 2: Convert to fraction form
    938,491/1,293,684.42 = 575,241.64/x
  3. Step 3: Cross multiply
    938,491x = 1,293,684.42 × 575,241.64
  4. Step 4: Simplify right side
    938,491x = 744,181,147,403.25
  5. Step 5: Solve for x
    x = 744,181,147,403.25/938,491
  6. Step 6: Final answer
    x = 792,955.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.