Home / 1,909,317.60-2,863,911.60-489,387.60

Finding the Fourth Proportional to 1,909,317.60, 2,863,911.60 and 489,387.60

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Solution

The fourth proportional to 1,909,317.60, 2,863,911.60 and 489,387.60 is: 734,064.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,317.60 : 2,863,911.60 = 489,387.60 : x
  2. Step 2: Convert to fraction form
    1,909,317.60/2,863,911.60 = 489,387.60/x
  3. Step 3: Cross multiply
    1,909,317.60x = 2,863,911.60 × 489,387.60
  4. Step 4: Simplify right side
    1,909,317.60x = 1,401,562,824,536.16
  5. Step 5: Solve for x
    x = 1,401,562,824,536.16/1,909,317.60
  6. Step 6: Final answer
    x = 734,064.79

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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.