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Finding the Fourth Proportional to 426,504.63, 639,204.69 and 173,491.41

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Solution

The fourth proportional to 426,504.63, 639,204.69 and 173,491.41 is: 260,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,504.63 : 639,204.69 = 173,491.41 : x
  2. Step 2: Convert to fraction form
    426,504.63/639,204.69 = 173,491.41/x
  3. Step 3: Cross multiply
    426,504.63x = 639,204.69 × 173,491.41
  4. Step 4: Simplify right side
    426,504.63x = 110,896,522,946.71
  5. Step 5: Solve for x
    x = 110,896,522,946.71/426,504.63
  6. Step 6: Final answer
    x = 260,012.47

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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.