Home / 2,780,441.60-4,165,413.60-1,428,000.80

Finding the Fourth Proportional to 2,780,441.60, 4,165,413.60 and 1,428,000.80

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Solution

The fourth proportional to 2,780,441.60, 4,165,413.60 and 1,428,000.80 is: 2,139,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,441.60 : 4,165,413.60 = 1,428,000.80 : x
  2. Step 2: Convert to fraction form
    2,780,441.60/4,165,413.60 = 1,428,000.80/x
  3. Step 3: Cross multiply
    2,780,441.60x = 4,165,413.60 × 1,428,000.80
  4. Step 4: Simplify right side
    2,780,441.60x = 5,948,213,953,130.88
  5. Step 5: Solve for x
    x = 5,948,213,953,130.88/2,780,441.60
  6. Step 6: Final answer
    x = 2,139,305.48

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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.