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Finding the Fourth Proportional to 490,074.60, 735,111.90 and 365,658.60

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Solution

The fourth proportional to 490,074.60, 735,111.90 and 365,658.60 is: 548,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,074.60 : 735,111.90 = 365,658.60 : x
  2. Step 2: Convert to fraction form
    490,074.60/735,111.90 = 365,658.60/x
  3. Step 3: Cross multiply
    490,074.60x = 735,111.90 × 365,658.60
  4. Step 4: Simplify right side
    490,074.60x = 268,799,988,197.34
  5. Step 5: Solve for x
    x = 268,799,988,197.34/490,074.60
  6. Step 6: Final answer
    x = 548,487.90

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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.