Home / 764,989.54-1,055,722.98-425,450.50

Finding the Fourth Proportional to 764,989.54, 1,055,722.98 and 425,450.50

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Solution

The fourth proportional to 764,989.54, 1,055,722.98 and 425,450.50 is: 587,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,989.54 : 1,055,722.98 = 425,450.50 : x
  2. Step 2: Convert to fraction form
    764,989.54/1,055,722.98 = 425,450.50/x
  3. Step 3: Cross multiply
    764,989.54x = 1,055,722.98 × 425,450.50
  4. Step 4: Simplify right side
    764,989.54x = 449,157,869,702.49
  5. Step 5: Solve for x
    x = 449,157,869,702.49/764,989.54
  6. Step 6: Final answer
    x = 587,142.50

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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.