Finding the Fourth Proportional to 831,618.81, 1,246,367.66 and 405,256.41
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Solution
The fourth proportional to 831,618.81, 1,246,367.66 and 405,256.41 is: 607,367.79
Step by Step Solution
- Step 1: Write the proportion equation
831,618.81 : 1,246,367.66 = 405,256.41 : x - Step 2: Convert to fraction form
831,618.81/1,246,367.66 = 405,256.41/x - Step 3: Cross multiply
831,618.81x = 1,246,367.66 × 405,256.41 - Step 4: Simplify right side
831,618.81x = 505,098,481,405.42 - Step 5: Solve for x
x = 505,098,481,405.42/831,618.81 - Step 6: Final answer
x = 607,367.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.