Finding the Fourth Proportional to 758,552.07, 1,138,276.99 and 279,116.54
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Solution
The fourth proportional to 758,552.07, 1,138,276.99 and 279,116.54 is: 418,839.98
Step by Step Solution
- Step 1: Write the proportion equation
758,552.07 : 1,138,276.99 = 279,116.54 : x - Step 2: Convert to fraction form
758,552.07/1,138,276.99 = 279,116.54/x - Step 3: Cross multiply
758,552.07x = 1,138,276.99 × 279,116.54 - Step 4: Simplify right side
758,552.07x = 317,711,930,016.82 - Step 5: Solve for x
x = 317,711,930,016.82/758,552.07 - Step 6: Final answer
x = 418,839.98
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1.5x scale
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.