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Finding the Fourth Proportional to 548,367.84, 756,741.42 and 306,647.10

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Solution

The fourth proportional to 548,367.84, 756,741.42 and 306,647.10 is: 423,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,367.84 : 756,741.42 = 306,647.10 : x
  2. Step 2: Convert to fraction form
    548,367.84/756,741.42 = 306,647.10/x
  3. Step 3: Cross multiply
    548,367.84x = 756,741.42 × 306,647.10
  4. Step 4: Simplify right side
    548,367.84x = 232,052,561,892.88
  5. Step 5: Solve for x
    x = 232,052,561,892.88/548,367.84
  6. Step 6: Final answer
    x = 423,169.53

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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.