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Finding the Fourth Proportional to 542,556.30, 748,736.67 and 300,849.06

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Solution

The fourth proportional to 542,556.30, 748,736.67 and 300,849.06 is: 415,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,556.30 : 748,736.67 = 300,849.06 : x
  2. Step 2: Convert to fraction form
    542,556.30/748,736.67 = 300,849.06/x
  3. Step 3: Cross multiply
    542,556.30x = 748,736.67 × 300,849.06
  4. Step 4: Simplify right side
    542,556.30x = 225,256,723,357.03
  5. Step 5: Solve for x
    x = 225,256,723,357.03/542,556.30
  6. Step 6: Final answer
    x = 415,176.68

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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.