Finding the Fourth Proportional to 1,934,396.19, 2,668,638.50 and 1,207,982.93
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Solution
The fourth proportional to 1,934,396.19, 2,668,638.50 and 1,207,982.93 is: 1,666,499.22
Step by Step Solution
- Step 1: Write the proportion equation
1,934,396.19 : 2,668,638.50 = 1,207,982.93 : x - Step 2: Convert to fraction form
1,934,396.19/2,668,638.50 = 1,207,982.93/x - Step 3: Cross multiply
1,934,396.19x = 2,668,638.50 × 1,207,982.93 - Step 4: Simplify right side
1,934,396.19x = 3,223,669,734,957.70 - Step 5: Solve for x
x = 3,223,669,734,957.70/1,934,396.19 - Step 6: Final answer
x = 1,666,499.22
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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.