Finding the Fourth Proportional to 714,691.24, 1,078,521.43 and 690,896.68
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Solution
The fourth proportional to 714,691.24, 1,078,521.43 and 690,896.68 is: 1,042,613.70
Step by Step Solution
- Step 1: Write the proportion equation
714,691.24 : 1,078,521.43 = 690,896.68 : x - Step 2: Convert to fraction form
714,691.24/1,078,521.43 = 690,896.68/x - Step 3: Cross multiply
714,691.24x = 1,078,521.43 × 690,896.68 - Step 4: Simplify right side
714,691.24x = 745,146,875,295.85 - Step 5: Solve for x
x = 745,146,875,295.85/714,691.24 - Step 6: Final answer
x = 1,042,613.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.