Finding the Fourth Proportional to 987,311.19, 1,481,502.60 and 419,011.95
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Solution
The fourth proportional to 987,311.19, 1,481,502.60 and 419,011.95 is: 628,745.32
Step by Step Solution
- Step 1: Write the proportion equation
987,311.19 : 1,481,502.60 = 419,011.95 : x - Step 2: Convert to fraction form
987,311.19/1,481,502.60 = 419,011.95/x - Step 3: Cross multiply
987,311.19x = 1,481,502.60 × 419,011.95 - Step 4: Simplify right side
987,311.19x = 620,767,293,356.07 - Step 5: Solve for x
x = 620,767,293,356.07/987,311.19 - Step 6: Final answer
x = 628,745.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.