Finding the Third Proportional to 420,318.75 and 669,136.88
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Solution
The third proportional to 420,318.75 and 669,136.88 is: 1,065,249.07
Step by Step Solution
- Step 1: Write the proportion equation
420,318.75 : 669,136.88 = 669,136.88 : x - Step 2: Convert to fraction form
420,318.75/669,136.88 = 669,136.88/x - Step 3: Cross multiply
420,318.75x = 669,136.88 × 669,136.88 - Step 4: Simplify right side
420,318.75x = 447,744,157,484.77 - Step 5: Solve for x
x = 447,744,157,484.77/420,318.75 - Step 6: Final answer
x = 1,065,249.07
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.