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Finding the Fourth Proportional to 542,670.26, 748,884.94 and 300,989.84

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Solution

The fourth proportional to 542,670.26, 748,884.94 and 300,989.84 is: 415,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,670.26 : 748,884.94 = 300,989.84 : x
  2. Step 2: Convert to fraction form
    542,670.26/748,884.94 = 300,989.84/x
  3. Step 3: Cross multiply
    542,670.26x = 748,884.94 × 300,989.84
  4. Step 4: Simplify right side
    542,670.26x = 225,406,758,269.01
  5. Step 5: Solve for x
    x = 225,406,758,269.01/542,670.26
  6. Step 6: Final answer
    x = 415,365.97

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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.