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Finding the Fourth Proportional to 442,034.40, 663,051.60 and 274,072.80

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Solution

The fourth proportional to 442,034.40, 663,051.60 and 274,072.80 is: 411,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,034.40 : 663,051.60 = 274,072.80 : x
  2. Step 2: Convert to fraction form
    442,034.40/663,051.60 = 274,072.80/x
  3. Step 3: Cross multiply
    442,034.40x = 663,051.60 × 274,072.80
  4. Step 4: Simplify right side
    442,034.40x = 181,724,408,556.48
  5. Step 5: Solve for x
    x = 181,724,408,556.48/442,034.40
  6. Step 6: Final answer
    x = 411,109.20

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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.