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Finding the Fourth Proportional to 703,331.76, 970,596.42 and 381,049.80

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Solution

The fourth proportional to 703,331.76, 970,596.42 and 381,049.80 is: 525,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,331.76 : 970,596.42 = 381,049.80 : x
  2. Step 2: Convert to fraction form
    703,331.76/970,596.42 = 381,049.80/x
  3. Step 3: Cross multiply
    703,331.76x = 970,596.42 × 381,049.80
  4. Step 4: Simplify right side
    703,331.76x = 369,845,571,721.72
  5. Step 5: Solve for x
    x = 369,845,571,721.72/703,331.76
  6. Step 6: Final answer
    x = 525,847.96

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Double scale
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1.5x scale

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.