Home / 644,677.47-965,687.25-377,628.36

Finding the Fourth Proportional to 644,677.47, 965,687.25 and 377,628.36

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Solution

The fourth proportional to 644,677.47, 965,687.25 and 377,628.36 is: 565,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,677.47 : 965,687.25 = 377,628.36 : x
  2. Step 2: Convert to fraction form
    644,677.47/965,687.25 = 377,628.36/x
  3. Step 3: Cross multiply
    644,677.47x = 965,687.25 × 377,628.36
  4. Step 4: Simplify right side
    644,677.47x = 364,670,892,490.41
  5. Step 5: Solve for x
    x = 364,670,892,490.41/644,677.47
  6. Step 6: Final answer
    x = 565,664.09

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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.