Home / 1,909,069.60-2,863,539.60-489,139.60

Finding the Fourth Proportional to 1,909,069.60, 2,863,539.60 and 489,139.60

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Solution

The fourth proportional to 1,909,069.60, 2,863,539.60 and 489,139.60 is: 733,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,069.60 : 2,863,539.60 = 489,139.60 : x
  2. Step 2: Convert to fraction form
    1,909,069.60/2,863,539.60 = 489,139.60/x
  3. Step 3: Cross multiply
    1,909,069.60x = 2,863,539.60 × 489,139.60
  4. Step 4: Simplify right side
    1,909,069.60x = 1,400,670,614,528.16
  5. Step 5: Solve for x
    x = 1,400,670,614,528.16/1,909,069.60
  6. Step 6: Final answer
    x = 733,692.80

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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.