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Finding the Fourth Proportional to 512,950.43, 707,957.69 and 347,303.25

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Solution

The fourth proportional to 512,950.43, 707,957.69 and 347,303.25 is: 479,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,950.43 : 707,957.69 = 347,303.25 : x
  2. Step 2: Convert to fraction form
    512,950.43/707,957.69 = 347,303.25/x
  3. Step 3: Cross multiply
    512,950.43x = 707,957.69 × 347,303.25
  4. Step 4: Simplify right side
    512,950.43x = 245,876,004,862.98
  5. Step 5: Solve for x
    x = 245,876,004,862.98/512,950.43
  6. Step 6: Final answer
    x = 479,336.78

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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.