Home / 1,662,422.33-2,291,519.31-1,225,438.77

Finding the Fourth Proportional to 1,662,422.33, 2,291,519.31 and 1,225,438.77

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Solution

The fourth proportional to 1,662,422.33, 2,291,519.31 and 1,225,438.77 is: 1,689,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,422.33 : 2,291,519.31 = 1,225,438.77 : x
  2. Step 2: Convert to fraction form
    1,662,422.33/2,291,519.31 = 1,225,438.77/x
  3. Step 3: Cross multiply
    1,662,422.33x = 2,291,519.31 × 1,225,438.77
  4. Step 4: Simplify right side
    1,662,422.33x = 2,808,116,615,568.54
  5. Step 5: Solve for x
    x = 2,808,116,615,568.54/1,662,422.33
  6. Step 6: Final answer
    x = 1,689,171.61

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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.