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Finding the Fourth Proportional to 512,969.76, 707,984.37 and 347,322.60

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Solution

The fourth proportional to 512,969.76, 707,984.37 and 347,322.60 is: 479,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,969.76 : 707,984.37 = 347,322.60 : x
  2. Step 2: Convert to fraction form
    512,969.76/707,984.37 = 347,322.60/x
  3. Step 3: Cross multiply
    512,969.76x = 707,984.37 × 347,322.60
  4. Step 4: Simplify right side
    512,969.76x = 245,898,972,147.76
  5. Step 5: Solve for x
    x = 245,898,972,147.76/512,969.76
  6. Step 6: Final answer
    x = 479,363.49

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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.