Finding the Fourth Proportional to 3,394,986.88, 4,685,138.72 and 1,944,808.80
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Solution
The fourth proportional to 3,394,986.88, 4,685,138.72 and 1,944,808.80 is: 2,683,868.70
Step by Step Solution
- Step 1: Write the proportion equation
3,394,986.88 : 4,685,138.72 = 1,944,808.80 : x - Step 2: Convert to fraction form
3,394,986.88/4,685,138.72 = 1,944,808.80/x - Step 3: Cross multiply
3,394,986.88x = 4,685,138.72 × 1,944,808.80 - Step 4: Simplify right side
3,394,986.88x = 9,111,699,011,876.74 - Step 5: Solve for x
x = 9,111,699,011,876.74/3,394,986.88 - Step 6: Final answer
x = 2,683,868.70
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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.