Finding the Fourth Proportional to 497,571.62, 685,953.17 and 420,781.95
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Solution
The fourth proportional to 497,571.62, 685,953.17 and 420,781.95 is: 580,090.79
Step by Step Solution
- Step 1: Write the proportion equation
497,571.62 : 685,953.17 = 420,781.95 : x - Step 2: Convert to fraction form
497,571.62/685,953.17 = 420,781.95/x - Step 3: Cross multiply
497,571.62x = 685,953.17 × 420,781.95 - Step 4: Simplify right side
497,571.62x = 288,636,710,377.37 - Step 5: Solve for x
x = 288,636,710,377.37/497,571.62 - Step 6: Final answer
x = 580,090.79
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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.