Finding the Fourth Proportional to 669,965.18, 1,004,731.80 and 220,579.05
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Solution
The fourth proportional to 669,965.18, 1,004,731.80 and 220,579.05 is: 330,797.47
Step by Step Solution
- Step 1: Write the proportion equation
669,965.18 : 1,004,731.80 = 220,579.05 : x - Step 2: Convert to fraction form
669,965.18/1,004,731.80 = 220,579.05/x - Step 3: Cross multiply
669,965.18x = 1,004,731.80 × 220,579.05 - Step 4: Simplify right side
669,965.18x = 221,622,783,237.75 - Step 5: Solve for x
x = 221,622,783,237.75/669,965.18 - Step 6: Final answer
x = 330,797.47
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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.