Finding the Fourth Proportional to 1,758,737.70, 2,638,106.55 and 1,286,345.70
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Solution
The fourth proportional to 1,758,737.70, 2,638,106.55 and 1,286,345.70 is: 1,929,518.55
Step by Step Solution
- Step 1: Write the proportion equation
1,758,737.70 : 2,638,106.55 = 1,286,345.70 : x - Step 2: Convert to fraction form
1,758,737.70/2,638,106.55 = 1,286,345.70/x - Step 3: Cross multiply
1,758,737.70x = 2,638,106.55 × 1,286,345.70 - Step 4: Simplify right side
1,758,737.70x = 3,393,517,016,734.33 - Step 5: Solve for x
x = 3,393,517,016,734.33/1,758,737.70 - Step 6: Final answer
x = 1,929,518.55
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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.