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Finding the Fourth Proportional to 633,668.64, 874,429.26 and 361,725.72

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Solution

The fourth proportional to 633,668.64, 874,429.26 and 361,725.72 is: 499,162.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,668.64 : 874,429.26 = 361,725.72 : x
  2. Step 2: Convert to fraction form
    633,668.64/874,429.26 = 361,725.72/x
  3. Step 3: Cross multiply
    633,668.64x = 874,429.26 × 361,725.72
  4. Step 4: Simplify right side
    633,668.64x = 316,303,553,662.57
  5. Step 5: Solve for x
    x = 316,303,553,662.57/633,668.64
  6. Step 6: Final answer
    x = 499,162.39

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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.