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Finding the Fourth Proportional to 605,024.80, 908,193.30 and 380,638.60

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Solution

The fourth proportional to 605,024.80, 908,193.30 and 380,638.60 is: 571,370.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,024.80 : 908,193.30 = 380,638.60 : x
  2. Step 2: Convert to fraction form
    605,024.80/908,193.30 = 380,638.60/x
  3. Step 3: Cross multiply
    605,024.80x = 908,193.30 × 380,638.60
  4. Step 4: Simplify right side
    605,024.80x = 345,693,426,241.38
  5. Step 5: Solve for x
    x = 345,693,426,241.38/605,024.80
  6. Step 6: Final answer
    x = 571,370.67

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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.