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Finding the Fourth Proportional to 379,636.58, 523,900.86 and 207,554.94

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Solution

The fourth proportional to 379,636.58, 523,900.86 and 207,554.94 is: 286,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,636.58 : 523,900.86 = 207,554.94 : x
  2. Step 2: Convert to fraction form
    379,636.58/523,900.86 = 207,554.94/x
  3. Step 3: Cross multiply
    379,636.58x = 523,900.86 × 207,554.94
  4. Step 4: Simplify right side
    379,636.58x = 108,738,211,563.25
  5. Step 5: Solve for x
    x = 108,738,211,563.25/379,636.58
  6. Step 6: Final answer
    x = 286,427.12

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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.