Finding the Fourth Proportional to 1,036,745.01, 1,555,012.35 and 278,487.95
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Solution
The fourth proportional to 1,036,745.01, 1,555,012.35 and 278,487.95 is: 417,703.68
Step by Step Solution
- Step 1: Write the proportion equation
1,036,745.01 : 1,555,012.35 = 278,487.95 : x - Step 2: Convert to fraction form
1,036,745.01/1,555,012.35 = 278,487.95/x - Step 3: Cross multiply
1,036,745.01x = 1,555,012.35 × 278,487.95 - Step 4: Simplify right side
1,036,745.01x = 433,052,201,576.18 - Step 5: Solve for x
x = 433,052,201,576.18/1,036,745.01 - Step 6: Final answer
x = 417,703.68
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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.