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Finding the Fourth Proportional to 542,612.56, 748,850.23 and 300,973.21

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Solution

The fourth proportional to 542,612.56, 748,850.23 and 300,973.21 is: 415,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,612.56 : 748,850.23 = 300,973.21 : x
  2. Step 2: Convert to fraction form
    542,612.56/748,850.23 = 300,973.21/x
  3. Step 3: Cross multiply
    542,612.56x = 748,850.23 × 300,973.21
  4. Step 4: Simplify right side
    542,612.56x = 225,383,857,532.34
  5. Step 5: Solve for x
    x = 225,383,857,532.34/542,612.56
  6. Step 6: Final answer
    x = 415,367.93

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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.