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Finding the Fourth Proportional to 662,003.97, 913,538.56 and 375,517.90

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Solution

The fourth proportional to 662,003.97, 913,538.56 and 375,517.90 is: 518,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,003.97 : 913,538.56 = 375,517.90 : x
  2. Step 2: Convert to fraction form
    662,003.97/913,538.56 = 375,517.90/x
  3. Step 3: Cross multiply
    662,003.97x = 913,538.56 × 375,517.90
  4. Step 4: Simplify right side
    662,003.97x = 343,050,081,620.22
  5. Step 5: Solve for x
    x = 343,050,081,620.22/662,003.97
  6. Step 6: Final answer
    x = 518,199.43

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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.