Home / 819,788.66-1,229,325.86-435,453.41

Finding the Fourth Proportional to 819,788.66, 1,229,325.86 and 435,453.41

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Solution

The fourth proportional to 819,788.66, 1,229,325.86 and 435,453.41 is: 652,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,788.66 : 1,229,325.86 = 435,453.41 : x
  2. Step 2: Convert to fraction form
    819,788.66/1,229,325.86 = 435,453.41/x
  3. Step 3: Cross multiply
    819,788.66x = 1,229,325.86 × 435,453.41
  4. Step 4: Simplify right side
    819,788.66x = 535,314,137,738.18
  5. Step 5: Solve for x
    x = 535,314,137,738.18/819,788.66
  6. Step 6: Final answer
    x = 652,990.42

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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.