Finding the Fourth Proportional to 419,355.93, 628,509.01 and 330,257.55
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Solution
The fourth proportional to 419,355.93, 628,509.01 and 330,257.55 is: 494,972.96
Step by Step Solution
- Step 1: Write the proportion equation
419,355.93 : 628,509.01 = 330,257.55 : x - Step 2: Convert to fraction form
419,355.93/628,509.01 = 330,257.55/x - Step 3: Cross multiply
419,355.93x = 628,509.01 × 330,257.55 - Step 4: Simplify right side
419,355.93x = 207,569,845,795.53 - Step 5: Solve for x
x = 207,569,845,795.53/419,355.93 - Step 6: Final answer
x = 494,972.96
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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.