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Finding the Fourth Proportional to 1,662,664.89, 2,294,503.07 and 974,171.97

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Solution

The fourth proportional to 1,662,664.89, 2,294,503.07 and 974,171.97 is: 1,344,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,664.89 : 2,294,503.07 = 974,171.97 : x
  2. Step 2: Convert to fraction form
    1,662,664.89/2,294,503.07 = 974,171.97/x
  3. Step 3: Cross multiply
    1,662,664.89x = 2,294,503.07 × 974,171.97
  4. Step 4: Simplify right side
    1,662,664.89x = 2,235,240,575,872.95
  5. Step 5: Solve for x
    x = 2,235,240,575,872.95/1,662,664.89
  6. Step 6: Final answer
    x = 1,344,372.27

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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.