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Finding the Fourth Proportional to 542,705.09, 748,958.03 and 300,973.26

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Solution

The fourth proportional to 542,705.09, 748,958.03 and 300,973.26 is: 415,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,705.09 : 748,958.03 = 300,973.26 : x
  2. Step 2: Convert to fraction form
    542,705.09/748,958.03 = 300,973.26/x
  3. Step 3: Cross multiply
    542,705.09x = 748,958.03 × 300,973.26
  4. Step 4: Simplify right side
    542,705.09x = 225,416,336,515.02
  5. Step 5: Solve for x
    x = 225,416,336,515.02/542,705.09
  6. Step 6: Final answer
    x = 415,356.96

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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.