Finding the Fourth Proportional to 1,036,756.70, 1,555,135.05 and 859,609.70
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Solution
The fourth proportional to 1,036,756.70, 1,555,135.05 and 859,609.70 is: 1,289,414.55
Step by Step Solution
- Step 1: Write the proportion equation
1,036,756.70 : 1,555,135.05 = 859,609.70 : x - Step 2: Convert to fraction form
1,036,756.70/1,555,135.05 = 859,609.70/x - Step 3: Cross multiply
1,036,756.70x = 1,555,135.05 × 859,609.70 - Step 4: Simplify right side
1,036,756.70x = 1,336,809,173,789.98 - Step 5: Solve for x
x = 1,336,809,173,789.98/1,036,756.70 - Step 6: Final answer
x = 1,289,414.55
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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.