Home / 1,909,129.60-2,863,629.60-489,199.60

Finding the Fourth Proportional to 1,909,129.60, 2,863,629.60 and 489,199.60

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Solution

The fourth proportional to 1,909,129.60, 2,863,629.60 and 489,199.60 is: 733,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,129.60 : 2,863,629.60 = 489,199.60 : x
  2. Step 2: Convert to fraction form
    1,909,129.60/2,863,629.60 = 489,199.60/x
  3. Step 3: Cross multiply
    1,909,129.60x = 2,863,629.60 × 489,199.60
  4. Step 4: Simplify right side
    1,909,129.60x = 1,400,886,454,868.16
  5. Step 5: Solve for x
    x = 1,400,886,454,868.16/1,909,129.60
  6. Step 6: Final answer
    x = 733,782.80

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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.