Home / 1,326,611.44-1,989,917.16-329,339.44

Finding the Fourth Proportional to 1,326,611.44, 1,989,917.16 and 329,339.44

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Solution

The fourth proportional to 1,326,611.44, 1,989,917.16 and 329,339.44 is: 494,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,611.44 : 1,989,917.16 = 329,339.44 : x
  2. Step 2: Convert to fraction form
    1,326,611.44/1,989,917.16 = 329,339.44/x
  3. Step 3: Cross multiply
    1,326,611.44x = 1,989,917.16 × 329,339.44
  4. Step 4: Simplify right side
    1,326,611.44x = 655,358,203,120.79
  5. Step 5: Solve for x
    x = 655,358,203,120.79/1,326,611.44
  6. Step 6: Final answer
    x = 494,009.16

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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.