Finding the Fourth Proportional to 1,037,728.70, 1,556,593.05 and 860,581.70
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Solution
The fourth proportional to 1,037,728.70, 1,556,593.05 and 860,581.70 is: 1,290,872.55
Step by Step Solution
- Step 1: Write the proportion equation
1,037,728.70 : 1,556,593.05 = 860,581.70 : x - Step 2: Convert to fraction form
1,037,728.70/1,556,593.05 = 860,581.70/x - Step 3: Cross multiply
1,037,728.70x = 1,556,593.05 × 860,581.70 - Step 4: Simplify right side
1,037,728.70x = 1,339,575,493,177.19 - Step 5: Solve for x
x = 1,339,575,493,177.19/1,037,728.70 - Step 6: Final answer
x = 1,290,872.55
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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.