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Finding the Fourth Proportional to 548,636.58, 757,100.91 and 306,913.95

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Solution

The fourth proportional to 548,636.58, 757,100.91 and 306,913.95 is: 423,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,636.58 : 757,100.91 = 306,913.95 : x
  2. Step 2: Convert to fraction form
    548,636.58/757,100.91 = 306,913.95/x
  3. Step 3: Cross multiply
    548,636.58x = 757,100.91 × 306,913.95
  4. Step 4: Simplify right side
    548,636.58x = 232,364,830,836.70
  5. Step 5: Solve for x
    x = 232,364,830,836.70/548,636.58
  6. Step 6: Final answer
    x = 423,531.42

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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.