Finding the Fourth Proportional to 1,217,745.68, 1,680,516.45 and 788,772.46
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Solution
The fourth proportional to 1,217,745.68, 1,680,516.45 and 788,772.46 is: 1,088,523.75
Step by Step Solution
- Step 1: Write the proportion equation
1,217,745.68 : 1,680,516.45 = 788,772.46 : x - Step 2: Convert to fraction form
1,217,745.68/1,680,516.45 = 788,772.46/x - Step 3: Cross multiply
1,217,745.68x = 1,680,516.45 × 788,772.46 - Step 4: Simplify right side
1,217,745.68x = 1,325,545,094,336.97 - Step 5: Solve for x
x = 1,325,545,094,336.97/1,217,745.68 - Step 6: Final answer
x = 1,088,523.75
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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.