Finding the Fourth Proportional to 426,805.18, 588,306.99 and 288,940.66
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Solution
The fourth proportional to 426,805.18, 588,306.99 and 288,940.66 is: 398,274.95
Step by Step Solution
- Step 1: Write the proportion equation
426,805.18 : 588,306.99 = 288,940.66 : x - Step 2: Convert to fraction form
426,805.18/588,306.99 = 288,940.66/x - Step 3: Cross multiply
426,805.18x = 588,306.99 × 288,940.66 - Step 4: Simplify right side
426,805.18x = 169,985,809,973.21 - Step 5: Solve for x
x = 169,985,809,973.21/426,805.18 - Step 6: Final answer
x = 398,274.95
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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.