Home / 1,288,483.64-1,932,974.48-489,702.90

Finding the Fourth Proportional to 1,288,483.64, 1,932,974.48 and 489,702.90

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Solution

The fourth proportional to 1,288,483.64, 1,932,974.48 and 489,702.90 is: 734,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,483.64 : 1,932,974.48 = 489,702.90 : x
  2. Step 2: Convert to fraction form
    1,288,483.64/1,932,974.48 = 489,702.90/x
  3. Step 3: Cross multiply
    1,288,483.64x = 1,932,974.48 × 489,702.90
  4. Step 4: Simplify right side
    1,288,483.64x = 946,583,208,481.99
  5. Step 5: Solve for x
    x = 946,583,208,481.99/1,288,483.64
  6. Step 6: Final answer
    x = 734,648.99

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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.