Finding the Fourth Proportional to 4,389,912.70, 6,598,865.85 and 4,137,970.30
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Solution
The fourth proportional to 4,389,912.70, 6,598,865.85 and 4,137,970.30 is: 6,220,148.96
Step by Step Solution
- Step 1: Write the proportion equation
4,389,912.70 : 6,598,865.85 = 4,137,970.30 : x - Step 2: Convert to fraction form
4,389,912.70/6,598,865.85 = 4,137,970.30/x - Step 3: Cross multiply
4,389,912.70x = 6,598,865.85 × 4,137,970.30 - Step 4: Simplify right side
4,389,912.70x = 27,305,910,900,984.25 - Step 5: Solve for x
x = 27,305,910,900,984.25/4,389,912.70 - Step 6: Final answer
x = 6,220,148.96
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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.