Finding the Fourth Proportional to 3,439,954.12, 4,747,139.72 and 1,891,242.14
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Solution
The fourth proportional to 3,439,954.12, 4,747,139.72 and 1,891,242.14 is: 2,609,915.82
Step by Step Solution
- Step 1: Write the proportion equation
3,439,954.12 : 4,747,139.72 = 1,891,242.14 : x - Step 2: Convert to fraction form
3,439,954.12/4,747,139.72 = 1,891,242.14/x - Step 3: Cross multiply
3,439,954.12x = 4,747,139.72 × 1,891,242.14 - Step 4: Simplify right side
3,439,954.12x = 8,977,990,682,931.80 - Step 5: Solve for x
x = 8,977,990,682,931.80/3,439,954.12 - Step 6: Final answer
x = 2,609,915.82
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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.