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Finding the Fourth Proportional to 548,859.78, 757,414.48 and 300,501.23

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Solution

The fourth proportional to 548,859.78, 757,414.48 and 300,501.23 is: 414,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,859.78 : 757,414.48 = 300,501.23 : x
  2. Step 2: Convert to fraction form
    548,859.78/757,414.48 = 300,501.23/x
  3. Step 3: Cross multiply
    548,859.78x = 757,414.48 × 300,501.23
  4. Step 4: Simplify right side
    548,859.78x = 227,603,982,859.81
  5. Step 5: Solve for x
    x = 227,603,982,859.81/548,859.78
  6. Step 6: Final answer
    x = 414,685.12

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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.