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Finding the Fourth Proportional to 703,173.62, 970,379.16 and 380,882.94

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Solution

The fourth proportional to 703,173.62, 970,379.16 and 380,882.94 is: 525,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,173.62 : 970,379.16 = 380,882.94 : x
  2. Step 2: Convert to fraction form
    703,173.62/970,379.16 = 380,882.94/x
  3. Step 3: Cross multiply
    703,173.62x = 970,379.16 × 380,882.94
  4. Step 4: Simplify right side
    703,173.62x = 369,600,867,375.53
  5. Step 5: Solve for x
    x = 369,600,867,375.53/703,173.62
  6. Step 6: Final answer
    x = 525,618.22

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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.