Finding the Fourth Proportional to 538,718.70, 743,436.99 and 297,010.65
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Solution
The fourth proportional to 538,718.70, 743,436.99 and 297,010.65 is: 409,877.56
Step by Step Solution
- Step 1: Write the proportion equation
538,718.70 : 743,436.99 = 297,010.65 : x - Step 2: Convert to fraction form
538,718.70/743,436.99 = 297,010.65/x - Step 3: Cross multiply
538,718.70x = 743,436.99 × 297,010.65 - Step 4: Simplify right side
538,718.70x = 220,808,703,633.94 - Step 5: Solve for x
x = 220,808,703,633.94/538,718.70 - Step 6: Final answer
x = 409,877.56
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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.