Home / 491,913.95-678,766.34-277,040.39

Finding the Fourth Proportional to 491,913.95, 678,766.34 and 277,040.39

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Solution

The fourth proportional to 491,913.95, 678,766.34 and 277,040.39 is: 382,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,913.95 : 678,766.34 = 277,040.39 : x
  2. Step 2: Convert to fraction form
    491,913.95/678,766.34 = 277,040.39/x
  3. Step 3: Cross multiply
    491,913.95x = 678,766.34 × 277,040.39
  4. Step 4: Simplify right side
    491,913.95x = 188,045,691,552.47
  5. Step 5: Solve for x
    x = 188,045,691,552.47/491,913.95
  6. Step 6: Final answer
    x = 382,273.55

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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.