Finding the Fourth Proportional to 3,746,399.11, 5,619,124.64 and 1,187,638.72
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Solution
The fourth proportional to 3,746,399.11, 5,619,124.64 and 1,187,638.72 is: 1,781,307.81
Step by Step Solution
- Step 1: Write the proportion equation
3,746,399.11 : 5,619,124.64 = 1,187,638.72 : x - Step 2: Convert to fraction form
3,746,399.11/5,619,124.64 = 1,187,638.72/x - Step 3: Cross multiply
3,746,399.11x = 5,619,124.64 × 1,187,638.72 - Step 4: Simplify right side
3,746,399.11x = 6,673,489,966,874.44 - Step 5: Solve for x
x = 6,673,489,966,874.44/3,746,399.11 - Step 6: Final answer
x = 1,781,307.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.