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Finding the Fourth Proportional to 490,613.53, 677,102.76 and 272,843.89

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Solution

The fourth proportional to 490,613.53, 677,102.76 and 272,843.89 is: 376,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,613.53 : 677,102.76 = 272,843.89 : x
  2. Step 2: Convert to fraction form
    490,613.53/677,102.76 = 272,843.89/x
  3. Step 3: Cross multiply
    490,613.53x = 677,102.76 × 272,843.89
  4. Step 4: Simplify right side
    490,613.53x = 184,743,350,968.14
  5. Step 5: Solve for x
    x = 184,743,350,968.14/490,613.53
  6. Step 6: Final answer
    x = 376,555.76

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1.5x scale

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.