Home / 1,294,721-1,942,081.50-408,257

Finding the Fourth Proportional to 1,294,721, 1,942,081.50 and 408,257

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Solution

The fourth proportional to 1,294,721, 1,942,081.50 and 408,257 is: 612,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,721 : 1,942,081.50 = 408,257 : x
  2. Step 2: Convert to fraction form
    1,294,721/1,942,081.50 = 408,257/x
  3. Step 3: Cross multiply
    1,294,721x = 1,942,081.50 × 408,257
  4. Step 4: Simplify right side
    1,294,721x = 792,868,366,945.50
  5. Step 5: Solve for x
    x = 792,868,366,945.50/1,294,721
  6. Step 6: Final answer
    x = 612,385.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.