Home / 2,190,394.40-3,022,680.64-1,210,317.86

Finding the Fourth Proportional to 2,190,394.40, 3,022,680.64 and 1,210,317.86

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Solution

The fourth proportional to 2,190,394.40, 3,022,680.64 and 1,210,317.86 is: 1,670,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,394.40 : 3,022,680.64 = 1,210,317.86 : x
  2. Step 2: Convert to fraction form
    2,190,394.40/3,022,680.64 = 1,210,317.86/x
  3. Step 3: Cross multiply
    2,190,394.40x = 3,022,680.64 × 1,210,317.86
  4. Step 4: Simplify right side
    2,190,394.40x = 3,658,404,350,644.92
  5. Step 5: Solve for x
    x = 3,658,404,350,644.92/2,190,394.40
  6. Step 6: Final answer
    x = 1,670,203.48

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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.