Home / 1,909,319.60-2,863,914.60-489,389.60

Finding the Fourth Proportional to 1,909,319.60, 2,863,914.60 and 489,389.60

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Solution

The fourth proportional to 1,909,319.60, 2,863,914.60 and 489,389.60 is: 734,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,319.60 : 2,863,914.60 = 489,389.60 : x
  2. Step 2: Convert to fraction form
    1,909,319.60/2,863,914.60 = 489,389.60/x
  3. Step 3: Cross multiply
    1,909,319.60x = 2,863,914.60 × 489,389.60
  4. Step 4: Simplify right side
    1,909,319.60x = 1,401,570,020,528.16
  5. Step 5: Solve for x
    x = 1,401,570,020,528.16/1,909,319.60
  6. Step 6: Final answer
    x = 734,067.79

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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.