Finding the Fourth Proportional to 1,212,012.99, 1,672,582.98 and 668,136.85
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Solution
The fourth proportional to 1,212,012.99, 1,672,582.98 and 668,136.85 is: 922,031.64
Step by Step Solution
- Step 1: Write the proportion equation
1,212,012.99 : 1,672,582.98 = 668,136.85 : x - Step 2: Convert to fraction form
1,212,012.99/1,672,582.98 = 668,136.85/x - Step 3: Cross multiply
1,212,012.99x = 1,672,582.98 × 668,136.85 - Step 4: Simplify right side
1,212,012.99x = 1,117,514,325,080.96 - Step 5: Solve for x
x = 1,117,514,325,080.96/1,212,012.99 - Step 6: Final answer
x = 922,031.64
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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.