Home / 1,422,615.88-2,133,921.39-664,203.16

Finding the Fourth Proportional to 1,422,615.88, 2,133,921.39 and 664,203.16

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Solution

The fourth proportional to 1,422,615.88, 2,133,921.39 and 664,203.16 is: 996,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,615.88 : 2,133,921.39 = 664,203.16 : x
  2. Step 2: Convert to fraction form
    1,422,615.88/2,133,921.39 = 664,203.16/x
  3. Step 3: Cross multiply
    1,422,615.88x = 2,133,921.39 × 664,203.16
  4. Step 4: Simplify right side
    1,422,615.88x = 1,417,357,330,429.59
  5. Step 5: Solve for x
    x = 1,417,357,330,429.59/1,422,615.88
  6. Step 6: Final answer
    x = 996,303.61

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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.