Finding the Fourth Proportional to 625,020.79, 862,528.94 and 338,539.99
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Solution
The fourth proportional to 625,020.79, 862,528.94 and 338,539.99 is: 467,185.32
Step by Step Solution
- Step 1: Write the proportion equation
625,020.79 : 862,528.94 = 338,539.99 : x - Step 2: Convert to fraction form
625,020.79/862,528.94 = 338,539.99/x - Step 3: Cross multiply
625,020.79x = 862,528.94 × 338,539.99 - Step 4: Simplify right side
625,020.79x = 292,000,537,029.61 - Step 5: Solve for x
x = 292,000,537,029.61/625,020.79 - Step 6: Final answer
x = 467,185.32
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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.