Finding the Fourth Proportional to 1,618,658.70, 2,427,988.05 and 1,556,450.70
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Solution
The fourth proportional to 1,618,658.70, 2,427,988.05 and 1,556,450.70 is: 2,334,676.05
Step by Step Solution
- Step 1: Write the proportion equation
1,618,658.70 : 2,427,988.05 = 1,556,450.70 : x - Step 2: Convert to fraction form
1,618,658.70/2,427,988.05 = 1,556,450.70/x - Step 3: Cross multiply
1,618,658.70x = 2,427,988.05 × 1,556,450.70 - Step 4: Simplify right side
1,618,658.70x = 3,779,043,700,014.14 - Step 5: Solve for x
x = 3,779,043,700,014.14/1,618,658.70 - Step 6: Final answer
x = 2,334,676.05
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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.