Finding the Fourth Proportional to 497,830.75, 687,058.28 and 306,839.23
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Solution
The fourth proportional to 497,830.75, 687,058.28 and 306,839.23 is: 423,470.09
Step by Step Solution
- Step 1: Write the proportion equation
497,830.75 : 687,058.28 = 306,839.23 : x - Step 2: Convert to fraction form
497,830.75/687,058.28 = 306,839.23/x - Step 3: Cross multiply
497,830.75x = 687,058.28 × 306,839.23 - Step 4: Simplify right side
497,830.75x = 210,816,433,600.32 - Step 5: Solve for x
x = 210,816,433,600.32/497,830.75 - Step 6: Final answer
x = 423,470.09
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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.