Home / 644,241.61-965,633.28-328,030.57

Finding the Fourth Proportional to 644,241.61, 965,633.28 and 328,030.57

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Solution

The fourth proportional to 644,241.61, 965,633.28 and 328,030.57 is: 491,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,241.61 : 965,633.28 = 328,030.57 : x
  2. Step 2: Convert to fraction form
    644,241.61/965,633.28 = 328,030.57/x
  3. Step 3: Cross multiply
    644,241.61x = 965,633.28 × 328,030.57
  4. Step 4: Simplify right side
    644,241.61x = 316,757,235,249.37
  5. Step 5: Solve for x
    x = 316,757,235,249.37/644,241.61
  6. Step 6: Final answer
    x = 491,674.60

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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.