Finding the Fourth Proportional to 919,912.40, 1,269,477.18 and 517,504.40
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Solution
The fourth proportional to 919,912.40, 1,269,477.18 and 517,504.40 is: 714,154.99
Step by Step Solution
- Step 1: Write the proportion equation
919,912.40 : 1,269,477.18 = 517,504.40 : x - Step 2: Convert to fraction form
919,912.40/1,269,477.18 = 517,504.40/x - Step 3: Cross multiply
919,912.40x = 1,269,477.18 × 517,504.40 - Step 4: Simplify right side
919,912.40x = 656,960,026,349.59 - Step 5: Solve for x
x = 656,960,026,349.59/919,912.40 - Step 6: Final answer
x = 714,154.99
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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.