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Finding the Fourth Proportional to 893,661.06, 1,340,479.90 and 219,748.20

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Solution

The fourth proportional to 893,661.06, 1,340,479.90 and 219,748.20 is: 329,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,661.06 : 1,340,479.90 = 219,748.20 : x
  2. Step 2: Convert to fraction form
    893,661.06/1,340,479.90 = 219,748.20/x
  3. Step 3: Cross multiply
    893,661.06x = 1,340,479.90 × 219,748.20
  4. Step 4: Simplify right side
    893,661.06x = 294,568,045,161.18
  5. Step 5: Solve for x
    x = 294,568,045,161.18/893,661.06
  6. Step 6: Final answer
    x = 329,619.43

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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.