Finding the Fourth Proportional to 868,678.16, 1,197,278.42 and 577,769.10
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Solution
The fourth proportional to 868,678.16, 1,197,278.42 and 577,769.10 is: 796,325.39
Step by Step Solution
- Step 1: Write the proportion equation
868,678.16 : 1,197,278.42 = 577,769.10 : x - Step 2: Convert to fraction form
868,678.16/1,197,278.42 = 577,769.10/x - Step 3: Cross multiply
868,678.16x = 1,197,278.42 × 577,769.10 - Step 4: Simplify right side
868,678.16x = 691,750,475,172.82 - Step 5: Solve for x
x = 691,750,475,172.82/868,678.16 - Step 6: Final answer
x = 796,325.39
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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.