Finding the Fourth Proportional to 685,674.81, 1,029,175.62 and 330,938.55
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Solution
The fourth proportional to 685,674.81, 1,029,175.62 and 330,938.55 is: 496,728.02
Step by Step Solution
- Step 1: Write the proportion equation
685,674.81 : 1,029,175.62 = 330,938.55 : x - Step 2: Convert to fraction form
685,674.81/1,029,175.62 = 330,938.55/x - Step 3: Cross multiply
685,674.81x = 1,029,175.62 × 330,938.55 - Step 4: Simplify right side
685,674.81x = 340,593,887,378.15 - Step 5: Solve for x
x = 340,593,887,378.15/685,674.81 - Step 6: Final answer
x = 496,728.02
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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.