Finding the Fourth Proportional to 1,929,821.20, 2,663,472.12 and 1,070,658.26
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Solution
The fourth proportional to 1,929,821.20, 2,663,472.12 and 1,070,658.26 is: 1,477,685.30
Step by Step Solution
- Step 1: Write the proportion equation
1,929,821.20 : 2,663,472.12 = 1,070,658.26 : x - Step 2: Convert to fraction form
1,929,821.20/2,663,472.12 = 1,070,658.26/x - Step 3: Cross multiply
1,929,821.20x = 2,663,472.12 × 1,070,658.26 - Step 4: Simplify right side
1,929,821.20x = 2,851,668,425,557.71 - Step 5: Solve for x
x = 2,851,668,425,557.71/1,929,821.20 - Step 6: Final answer
x = 1,477,685.30
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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.