Home / 2,021,378.25-2,789,184.87-1,161,777.90

Finding the Fourth Proportional to 2,021,378.25, 2,789,184.87 and 1,161,777.90

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Solution

The fourth proportional to 2,021,378.25, 2,789,184.87 and 1,161,777.90 is: 1,603,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,378.25 : 2,789,184.87 = 1,161,777.90 : x
  2. Step 2: Convert to fraction form
    2,021,378.25/2,789,184.87 = 1,161,777.90/x
  3. Step 3: Cross multiply
    2,021,378.25x = 2,789,184.87 × 1,161,777.90
  4. Step 4: Simplify right side
    2,021,378.25x = 3,240,413,340,980.37
  5. Step 5: Solve for x
    x = 3,240,413,340,980.37/2,021,378.25
  6. Step 6: Final answer
    x = 1,603,071.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.