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Finding the Fourth Proportional to 703,604.44, 970,442.86 and 442,035.80

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Solution

The fourth proportional to 703,604.44, 970,442.86 and 442,035.80 is: 609,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,604.44 : 970,442.86 = 442,035.80 : x
  2. Step 2: Convert to fraction form
    703,604.44/970,442.86 = 442,035.80/x
  3. Step 3: Cross multiply
    703,604.44x = 970,442.86 × 442,035.80
  4. Step 4: Simplify right side
    703,604.44x = 428,970,485,974.39
  5. Step 5: Solve for x
    x = 428,970,485,974.39/703,604.44
  6. Step 6: Final answer
    x = 609,675.64

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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.