Finding the Fourth Proportional to 668,440.10, 1,002,692.99 and 218,978.84
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Solution
The fourth proportional to 668,440.10, 1,002,692.99 and 218,978.84 is: 328,479.01
Step by Step Solution
- Step 1: Write the proportion equation
668,440.10 : 1,002,692.99 = 218,978.84 : x - Step 2: Convert to fraction form
668,440.10/1,002,692.99 = 218,978.84/x - Step 3: Cross multiply
668,440.10x = 1,002,692.99 × 218,978.84 - Step 4: Simplify right side
668,440.10x = 219,568,543,360.31 - Step 5: Solve for x
x = 219,568,543,360.31/668,440.10 - Step 6: Final answer
x = 328,479.01
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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.