Finding the Fourth Proportional to 798,456.68, 1,197,873.79 and 258,712.06
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Solution
The fourth proportional to 798,456.68, 1,197,873.79 and 258,712.06 is: 388,129.25
Step by Step Solution
- Step 1: Write the proportion equation
798,456.68 : 1,197,873.79 = 258,712.06 : x - Step 2: Convert to fraction form
798,456.68/1,197,873.79 = 258,712.06/x - Step 3: Cross multiply
798,456.68x = 1,197,873.79 × 258,712.06 - Step 4: Simplify right side
798,456.68x = 309,904,389,458.34 - Step 5: Solve for x
x = 309,904,389,458.34/798,456.68 - Step 6: Final answer
x = 388,129.25
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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.