Home / 1,336,634.40-2,004,922.80-890,215.20

Finding the Fourth Proportional to 1,336,634.40, 2,004,922.80 and 890,215.20

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Solution

The fourth proportional to 1,336,634.40, 2,004,922.80 and 890,215.20 is: 1,335,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,634.40 : 2,004,922.80 = 890,215.20 : x
  2. Step 2: Convert to fraction form
    1,336,634.40/2,004,922.80 = 890,215.20/x
  3. Step 3: Cross multiply
    1,336,634.40x = 2,004,922.80 × 890,215.20
  4. Step 4: Simplify right side
    1,336,634.40x = 1,784,812,751,386.56
  5. Step 5: Solve for x
    x = 1,784,812,751,386.56/1,336,634.40
  6. Step 6: Final answer
    x = 1,335,303.62

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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.