Home / 642,286.02-963,450.90-305,152.68

Finding the Fourth Proportional to 642,286.02, 963,450.90 and 305,152.68

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Solution

The fourth proportional to 642,286.02, 963,450.90 and 305,152.68 is: 457,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,286.02 : 963,450.90 = 305,152.68 : x
  2. Step 2: Convert to fraction form
    642,286.02/963,450.90 = 305,152.68/x
  3. Step 3: Cross multiply
    642,286.02x = 963,450.90 × 305,152.68
  4. Step 4: Simplify right side
    642,286.02x = 293,999,624,183.41
  5. Step 5: Solve for x
    x = 293,999,624,183.41/642,286.02
  6. Step 6: Final answer
    x = 457,739.41

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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.