Home / 1,992,848.40-2,987,231.40-980,413.20

Finding the Fourth Proportional to 1,992,848.40, 2,987,231.40 and 980,413.20

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Solution

The fourth proportional to 1,992,848.40, 2,987,231.40 and 980,413.20 is: 1,469,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,848.40 : 2,987,231.40 = 980,413.20 : x
  2. Step 2: Convert to fraction form
    1,992,848.40/2,987,231.40 = 980,413.20/x
  3. Step 3: Cross multiply
    1,992,848.40x = 2,987,231.40 × 980,413.20
  4. Step 4: Simplify right side
    1,992,848.40x = 2,928,721,096,014.48
  5. Step 5: Solve for x
    x = 2,928,721,096,014.48/1,992,848.40
  6. Step 6: Final answer
    x = 1,469,615.60

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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.