Finding the Fourth Proportional to 330,506.56, 494,990.93 and 321,415.12
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Solution
The fourth proportional to 330,506.56, 494,990.93 and 321,415.12 is: 481,374.92
Step by Step Solution
- Step 1: Write the proportion equation
330,506.56 : 494,990.93 = 321,415.12 : x - Step 2: Convert to fraction form
330,506.56/494,990.93 = 321,415.12/x - Step 3: Cross multiply
330,506.56x = 494,990.93 × 321,415.12 - Step 4: Simplify right side
330,506.56x = 159,097,570,587.14 - Step 5: Solve for x
x = 159,097,570,587.14/330,506.56 - Step 6: Final answer
x = 481,374.92
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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.