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Finding the Fourth Proportional to 488,619.96, 674,362.11 and 273,805.53

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Solution

The fourth proportional to 488,619.96, 674,362.11 and 273,805.53 is: 377,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,619.96 : 674,362.11 = 273,805.53 : x
  2. Step 2: Convert to fraction form
    488,619.96/674,362.11 = 273,805.53/x
  3. Step 3: Cross multiply
    488,619.96x = 674,362.11 × 273,805.53
  4. Step 4: Simplify right side
    488,619.96x = 184,644,074,940.47
  5. Step 5: Solve for x
    x = 184,644,074,940.47/488,619.96
  6. Step 6: Final answer
    x = 377,888.93

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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.