Finding the Fourth Proportional to 696,629.12, 960,939.90 and 438,095.99
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Solution
The fourth proportional to 696,629.12, 960,939.90 and 438,095.99 is: 604,315.70
Step by Step Solution
- Step 1: Write the proportion equation
696,629.12 : 960,939.90 = 438,095.99 : x - Step 2: Convert to fraction form
696,629.12/960,939.90 = 438,095.99/x - Step 3: Cross multiply
696,629.12x = 960,939.90 × 438,095.99 - Step 4: Simplify right side
696,629.12x = 420,983,912,016.30 - Step 5: Solve for x
x = 420,983,912,016.30/696,629.12 - Step 6: Final answer
x = 604,315.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.