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Finding the Fourth Proportional to 541,940.63, 747,920.21 and 300,245.54

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Solution

The fourth proportional to 541,940.63, 747,920.21 and 300,245.54 is: 414,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,940.63 : 747,920.21 = 300,245.54 : x
  2. Step 2: Convert to fraction form
    541,940.63/747,920.21 = 300,245.54/x
  3. Step 3: Cross multiply
    541,940.63x = 747,920.21 × 300,245.54
  4. Step 4: Simplify right side
    541,940.63x = 224,559,702,087.54
  5. Step 5: Solve for x
    x = 224,559,702,087.54/541,940.63
  6. Step 6: Final answer
    x = 414,362.19

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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.