Finding the Fourth Proportional to 1,556,155.40, 2,331,608.70 and 1,288,466.60
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Solution
The fourth proportional to 1,556,155.40, 2,331,608.70 and 1,288,466.60 is: 1,930,526.95
Step by Step Solution
- Step 1: Write the proportion equation
1,556,155.40 : 2,331,608.70 = 1,288,466.60 : x - Step 2: Convert to fraction form
1,556,155.40/2,331,608.70 = 1,288,466.60/x - Step 3: Cross multiply
1,556,155.40x = 2,331,608.70 × 1,288,466.60 - Step 4: Simplify right side
1,556,155.40x = 3,004,199,934,219.42 - Step 5: Solve for x
x = 3,004,199,934,219.42/1,556,155.40 - Step 6: Final answer
x = 1,930,526.95
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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.