Finding the Fourth Proportional to 1,620,212.70, 2,425,653.45 and 1,573,556.70
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Solution
The fourth proportional to 1,620,212.70, 2,425,653.45 and 1,573,556.70 is: 2,355,803.80
Step by Step Solution
- Step 1: Write the proportion equation
1,620,212.70 : 2,425,653.45 = 1,573,556.70 : x - Step 2: Convert to fraction form
1,620,212.70/2,425,653.45 = 1,573,556.70/x - Step 3: Cross multiply
1,620,212.70x = 2,425,653.45 × 1,573,556.70 - Step 4: Simplify right side
1,620,212.70x = 3,816,903,238,125.62 - Step 5: Solve for x
x = 3,816,903,238,125.62/1,620,212.70 - Step 6: Final answer
x = 2,355,803.80
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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.