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Finding the Fourth Proportional to 548,425.94, 756,838.19 and 306,735.10

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Solution

The fourth proportional to 548,425.94, 756,838.19 and 306,735.10 is: 423,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,425.94 : 756,838.19 = 306,735.10 : x
  2. Step 2: Convert to fraction form
    548,425.94/756,838.19 = 306,735.10/x
  3. Step 3: Cross multiply
    548,425.94x = 756,838.19 × 306,735.10
  4. Step 4: Simplify right side
    548,425.94x = 232,148,836,768.21
  5. Step 5: Solve for x
    x = 232,148,836,768.21/548,425.94
  6. Step 6: Final answer
    x = 423,300.25

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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.