Finding the Fourth Proportional to 723,892.20, 1,085,313.42 and 486,646.44
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Solution
The fourth proportional to 723,892.20, 1,085,313.42 and 486,646.44 is: 729,616.80
Step by Step Solution
- Step 1: Write the proportion equation
723,892.20 : 1,085,313.42 = 486,646.44 : x - Step 2: Convert to fraction form
723,892.20/1,085,313.42 = 486,646.44/x - Step 3: Cross multiply
723,892.20x = 1,085,313.42 × 486,646.44 - Step 4: Simplify right side
723,892.20x = 528,163,912,127.23 - Step 5: Solve for x
x = 528,163,912,127.23/723,892.20 - Step 6: Final answer
x = 729,616.80
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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.