Finding the Fourth Proportional to 764,539.98, 1,055,092.23 and 420,402.03
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Solution
The fourth proportional to 764,539.98, 1,055,092.23 and 420,402.03 is: 580,169.68
Step by Step Solution
- Step 1: Write the proportion equation
764,539.98 : 1,055,092.23 = 420,402.03 : x - Step 2: Convert to fraction form
764,539.98/1,055,092.23 = 420,402.03/x - Step 3: Cross multiply
764,539.98x = 1,055,092.23 × 420,402.03 - Step 4: Simplify right side
764,539.98x = 443,562,915,329.23 - Step 5: Solve for x
x = 443,562,915,329.23/764,539.98 - Step 6: Final answer
x = 580,169.68
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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.