Finding the Fourth Proportional to 3,556,587.80, 5,319,135.30 and 2,989,717.40
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Solution
The fourth proportional to 3,556,587.80, 5,319,135.30 and 2,989,717.40 is: 4,471,339.46
Step by Step Solution
- Step 1: Write the proportion equation
3,556,587.80 : 5,319,135.30 = 2,989,717.40 : x - Step 2: Convert to fraction form
3,556,587.80/5,319,135.30 = 2,989,717.40/x - Step 3: Cross multiply
3,556,587.80x = 5,319,135.30 × 2,989,717.40 - Step 4: Simplify right side
3,556,587.80x = 15,902,711,359,364.22 - Step 5: Solve for x
x = 15,902,711,359,364.22/3,556,587.80 - Step 6: Final answer
x = 4,471,339.46
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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.