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Finding the Fourth Proportional to 703,383.64, 970,661.80 and 381,074.52

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Solution

The fourth proportional to 703,383.64, 970,661.80 and 381,074.52 is: 525,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,383.64 : 970,661.80 = 381,074.52 : x
  2. Step 2: Convert to fraction form
    703,383.64/970,661.80 = 381,074.52/x
  3. Step 3: Cross multiply
    703,383.64x = 970,661.80 × 381,074.52
  4. Step 4: Simplify right side
    703,383.64x = 369,894,479,517.34
  5. Step 5: Solve for x
    x = 369,894,479,517.34/703,383.64
  6. Step 6: Final answer
    x = 525,878.71

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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.