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Finding the Fourth Proportional to 578,993.72, 867,207.38 and 444,886.84

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Solution

The fourth proportional to 578,993.72, 867,207.38 and 444,886.84 is: 666,344.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,993.72 : 867,207.38 = 444,886.84 : x
  2. Step 2: Convert to fraction form
    578,993.72/867,207.38 = 444,886.84/x
  3. Step 3: Cross multiply
    578,993.72x = 867,207.38 × 444,886.84
  4. Step 4: Simplify right side
    578,993.72x = 385,809,150,912.88
  5. Step 5: Solve for x
    x = 385,809,150,912.88/578,993.72
  6. Step 6: Final answer
    x = 666,344.28

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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.