Finding the Fourth Proportional to 498,891.68, 688,437.60 and 284,053.76
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Solution
The fourth proportional to 498,891.68, 688,437.60 and 284,053.76 is: 391,975.45
Step by Step Solution
- Step 1: Write the proportion equation
498,891.68 : 688,437.60 = 284,053.76 : x - Step 2: Convert to fraction form
498,891.68/688,437.60 = 284,053.76/x - Step 3: Cross multiply
498,891.68x = 688,437.60 × 284,053.76 - Step 4: Simplify right side
498,891.68x = 195,553,288,805.38 - Step 5: Solve for x
x = 195,553,288,805.38/498,891.68 - Step 6: Final answer
x = 391,975.45
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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.