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Finding the Fourth Proportional to 548,684.28, 757,166.94 and 306,971.10

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Solution

The fourth proportional to 548,684.28, 757,166.94 and 306,971.10 is: 423,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,684.28 : 757,166.94 = 306,971.10 : x
  2. Step 2: Convert to fraction form
    548,684.28/757,166.94 = 306,971.10/x
  3. Step 3: Cross multiply
    548,684.28x = 757,166.94 × 306,971.10
  4. Step 4: Simplify right side
    548,684.28x = 232,428,368,455.43
  5. Step 5: Solve for x
    x = 232,428,368,455.43/548,684.28
  6. Step 6: Final answer
    x = 423,610.40

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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.