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Finding the Fourth Proportional to 626,353.54, 939,442.83 and 266,668.60

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Solution

The fourth proportional to 626,353.54, 939,442.83 and 266,668.60 is: 399,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,353.54 : 939,442.83 = 266,668.60 : x
  2. Step 2: Convert to fraction form
    626,353.54/939,442.83 = 266,668.60/x
  3. Step 3: Cross multiply
    626,353.54x = 939,442.83 × 266,668.60
  4. Step 4: Simplify right side
    626,353.54x = 250,519,904,256.14
  5. Step 5: Solve for x
    x = 250,519,904,256.14/626,353.54
  6. Step 6: Final answer
    x = 399,965.66

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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.