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Finding the Fourth Proportional to 542,678.33, 748,846.62 and 300,960.16

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Solution

The fourth proportional to 542,678.33, 748,846.62 and 300,960.16 is: 415,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,678.33 : 748,846.62 = 300,960.16 : x
  2. Step 2: Convert to fraction form
    542,678.33/748,846.62 = 300,960.16/x
  3. Step 3: Cross multiply
    542,678.33x = 748,846.62 × 300,960.16
  4. Step 4: Simplify right side
    542,678.33x = 225,372,996,698.54
  5. Step 5: Solve for x
    x = 225,372,996,698.54/542,678.33
  6. Step 6: Final answer
    x = 415,297.58

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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.