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Finding the Fourth Proportional to 450,668.58, 621,880.02 and 269,344.50

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Solution

The fourth proportional to 450,668.58, 621,880.02 and 269,344.50 is: 371,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,668.58 : 621,880.02 = 269,344.50 : x
  2. Step 2: Convert to fraction form
    450,668.58/621,880.02 = 269,344.50/x
  3. Step 3: Cross multiply
    450,668.58x = 621,880.02 × 269,344.50
  4. Step 4: Simplify right side
    450,668.58x = 167,499,963,046.89
  5. Step 5: Solve for x
    x = 167,499,963,046.89/450,668.58
  6. Step 6: Final answer
    x = 371,669.94

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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.