Finding the Fourth Proportional to 621,365.82, 857,476.68 and 349,433.63
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Solution
The fourth proportional to 621,365.82, 857,476.68 and 349,433.63 is: 482,213.82
Step by Step Solution
- Step 1: Write the proportion equation
621,365.82 : 857,476.68 = 349,433.63 : x - Step 2: Convert to fraction form
621,365.82/857,476.68 = 349,433.63/x - Step 3: Cross multiply
621,365.82x = 857,476.68 × 349,433.63 - Step 4: Simplify right side
621,365.82x = 299,631,184,645.37 - Step 5: Solve for x
x = 299,631,184,645.37/621,365.82 - Step 6: Final answer
x = 482,213.82
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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.