Home / 644,818.93-888,912.28-450,623.72

Finding the Fourth Proportional to 644,818.93, 888,912.28 and 450,623.72

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Solution

The fourth proportional to 644,818.93, 888,912.28 and 450,623.72 is: 621,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,818.93 : 888,912.28 = 450,623.72 : x
  2. Step 2: Convert to fraction form
    644,818.93/888,912.28 = 450,623.72/x
  3. Step 3: Cross multiply
    644,818.93x = 888,912.28 × 450,623.72
  4. Step 4: Simplify right side
    644,818.93x = 400,564,958,367.28
  5. Step 5: Solve for x
    x = 400,564,958,367.28/644,818.93
  6. Step 6: Final answer
    x = 621,205.33

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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.