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Finding the Fourth Proportional to 703,310.61, 970,567.47 and 381,028.89

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Solution

The fourth proportional to 703,310.61, 970,567.47 and 381,028.89 is: 525,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,310.61 : 970,567.47 = 381,028.89 : x
  2. Step 2: Convert to fraction form
    703,310.61/970,567.47 = 381,028.89/x
  3. Step 3: Cross multiply
    703,310.61x = 970,567.47 × 381,028.89
  4. Step 4: Simplify right side
    703,310.61x = 369,814,245,764.21
  5. Step 5: Solve for x
    x = 369,814,245,764.21/703,310.61
  6. Step 6: Final answer
    x = 525,819.23

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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.