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Finding the Fourth Proportional to 542,556.81, 748,737.36 and 300,849.57

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Solution

The fourth proportional to 542,556.81, 748,737.36 and 300,849.57 is: 415,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,556.81 : 748,737.36 = 300,849.57 : x
  2. Step 2: Convert to fraction form
    542,556.81/748,737.36 = 300,849.57/x
  3. Step 3: Cross multiply
    542,556.81x = 748,737.36 × 300,849.57
  4. Step 4: Simplify right side
    542,556.81x = 225,257,312,798.94
  5. Step 5: Solve for x
    x = 225,257,312,798.94/542,556.81
  6. Step 6: Final answer
    x = 415,177.38

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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.