Home / 1,215,619.20-1,821,023.10-1,066,028.40

Finding the Fourth Proportional to 1,215,619.20, 1,821,023.10 and 1,066,028.40

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Solution

The fourth proportional to 1,215,619.20, 1,821,023.10 and 1,066,028.40 is: 1,596,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,619.20 : 1,821,023.10 = 1,066,028.40 : x
  2. Step 2: Convert to fraction form
    1,215,619.20/1,821,023.10 = 1,066,028.40/x
  3. Step 3: Cross multiply
    1,215,619.20x = 1,821,023.10 × 1,066,028.40
  4. Step 4: Simplify right side
    1,215,619.20x = 1,941,262,341,656.04
  5. Step 5: Solve for x
    x = 1,941,262,341,656.04/1,215,619.20
  6. Step 6: Final answer
    x = 1,596,932.94

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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.