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Finding the Fourth Proportional to 539,191, 744,083.58 and 300,727

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Solution

The fourth proportional to 539,191, 744,083.58 and 300,727 is: 415,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,191 : 744,083.58 = 300,727 : x
  2. Step 2: Convert to fraction form
    539,191/744,083.58 = 300,727/x
  3. Step 3: Cross multiply
    539,191x = 744,083.58 × 300,727
  4. Step 4: Simplify right side
    539,191x = 223,766,022,762.66
  5. Step 5: Solve for x
    x = 223,766,022,762.66/539,191
  6. Step 6: Final answer
    x = 415,003.26

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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.