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Finding the Fourth Proportional to 1,618,100, 2,232,978.96 and 902,708

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Solution

The fourth proportional to 1,618,100, 2,232,978.96 and 902,708 is: 1,245,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,100 : 2,232,978.96 = 902,708 : x
  2. Step 2: Convert to fraction form
    1,618,100/2,232,978.96 = 902,708/x
  3. Step 3: Cross multiply
    1,618,100x = 2,232,978.96 × 902,708
  4. Step 4: Simplify right side
    1,618,100x = 2,015,727,971,023.68
  5. Step 5: Solve for x
    x = 2,015,727,971,023.68/1,618,100
  6. Step 6: Final answer
    x = 1,245,737.58

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