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Finding the Fourth Proportional to 426,946.94, 640,525.49 and 300,833.49

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Solution

The fourth proportional to 426,946.94, 640,525.49 and 300,833.49 is: 451,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,946.94 : 640,525.49 = 300,833.49 : x
  2. Step 2: Convert to fraction form
    426,946.94/640,525.49 = 300,833.49/x
  3. Step 3: Cross multiply
    426,946.94x = 640,525.49 × 300,833.49
  4. Step 4: Simplify right side
    426,946.94x = 192,691,519,342.74
  5. Step 5: Solve for x
    x = 192,691,519,342.74/426,946.94
  6. Step 6: Final answer
    x = 451,324.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.