Finding the Fourth Proportional to 688,344.50, 1,032,162.21 and 308,939.98
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Solution
The fourth proportional to 688,344.50, 1,032,162.21 and 308,939.98 is: 463,250.84
Step by Step Solution
- Step 1: Write the proportion equation
688,344.50 : 1,032,162.21 = 308,939.98 : x - Step 2: Convert to fraction form
688,344.50/1,032,162.21 = 308,939.98/x - Step 3: Cross multiply
688,344.50x = 1,032,162.21 × 308,939.98 - Step 4: Simplify right side
688,344.50x = 318,876,165,808.65 - Step 5: Solve for x
x = 318,876,165,808.65/688,344.50 - Step 6: Final answer
x = 463,250.84
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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.