Home / 1,210,162.20-1,815,243.30-1,131,430.20

Finding the Fourth Proportional to 1,210,162.20, 1,815,243.30 and 1,131,430.20

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Solution

The fourth proportional to 1,210,162.20, 1,815,243.30 and 1,131,430.20 is: 1,697,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,162.20 : 1,815,243.30 = 1,131,430.20 : x
  2. Step 2: Convert to fraction form
    1,210,162.20/1,815,243.30 = 1,131,430.20/x
  3. Step 3: Cross multiply
    1,210,162.20x = 1,815,243.30 × 1,131,430.20
  4. Step 4: Simplify right side
    1,210,162.20x = 2,053,821,089,967.66
  5. Step 5: Solve for x
    x = 2,053,821,089,967.66/1,210,162.20
  6. Step 6: Final answer
    x = 1,697,145.30

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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.