Home / 772,408.50-1,065,989.34-432,942.36

Finding the Fourth Proportional to 772,408.50, 1,065,989.34 and 432,942.36

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Solution

The fourth proportional to 772,408.50, 1,065,989.34 and 432,942.36 is: 597,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,408.50 : 1,065,989.34 = 432,942.36 : x
  2. Step 2: Convert to fraction form
    772,408.50/1,065,989.34 = 432,942.36/x
  3. Step 3: Cross multiply
    772,408.50x = 1,065,989.34 × 432,942.36
  4. Step 4: Simplify right side
    772,408.50x = 461,511,940,594.44
  5. Step 5: Solve for x
    x = 461,511,940,594.44/772,408.50
  6. Step 6: Final answer
    x = 597,497.23

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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.