Home / 1,288,606.64-1,932,144.24-489,946.64

Finding the Fourth Proportional to 1,288,606.64, 1,932,144.24 and 489,946.64

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Solution

The fourth proportional to 1,288,606.64, 1,932,144.24 and 489,946.64 is: 734,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,606.64 : 1,932,144.24 = 489,946.64 : x
  2. Step 2: Convert to fraction form
    1,288,606.64/1,932,144.24 = 489,946.64/x
  3. Step 3: Cross multiply
    1,288,606.64x = 1,932,144.24 × 489,946.64
  4. Step 4: Simplify right side
    1,288,606.64x = 946,647,578,383.35
  5. Step 5: Solve for x
    x = 946,647,578,383.35/1,288,606.64
  6. Step 6: Final answer
    x = 734,628.82

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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.