Finding the Fourth Proportional to 858,813.09, 1,288,576.23 and 432,121.08
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Solution
The fourth proportional to 858,813.09, 1,288,576.23 and 432,121.08 is: 648,361.04
Step by Step Solution
- Step 1: Write the proportion equation
858,813.09 : 1,288,576.23 = 432,121.08 : x - Step 2: Convert to fraction form
858,813.09/1,288,576.23 = 432,121.08/x - Step 3: Cross multiply
858,813.09x = 1,288,576.23 × 432,121.08 - Step 4: Simplify right side
858,813.09x = 556,820,952,169.93 - Step 5: Solve for x
x = 556,820,952,169.93/858,813.09 - Step 6: Final answer
x = 648,361.04
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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.