Home / 644,670.45-965,676.74-377,621.35

Finding the Fourth Proportional to 644,670.45, 965,676.74 and 377,621.35

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Solution

The fourth proportional to 644,670.45, 965,676.74 and 377,621.35 is: 565,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,670.45 : 965,676.74 = 377,621.35 : x
  2. Step 2: Convert to fraction form
    644,670.45/965,676.74 = 377,621.35/x
  3. Step 3: Cross multiply
    644,670.45x = 965,676.74 × 377,621.35
  4. Step 4: Simplify right side
    644,670.45x = 364,660,149,920.10
  5. Step 5: Solve for x
    x = 364,660,149,920.10/644,670.45
  6. Step 6: Final answer
    x = 565,653.58

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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.