Finding the Fourth Proportional to 1,555,124.66, 2,145,812.04 and 866,645.66
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Solution
The fourth proportional to 1,555,124.66, 2,145,812.04 and 866,645.66 is: 1,195,826.12
Step by Step Solution
- Step 1: Write the proportion equation
1,555,124.66 : 2,145,812.04 = 866,645.66 : x - Step 2: Convert to fraction form
1,555,124.66/2,145,812.04 = 866,645.66/x - Step 3: Cross multiply
1,555,124.66x = 2,145,812.04 × 866,645.66 - Step 4: Simplify right side
1,555,124.66x = 1,859,658,680,912.69 - Step 5: Solve for x
x = 1,859,658,680,912.69/1,555,124.66 - Step 6: Final answer
x = 1,195,826.12
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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.