Finding the Fourth Proportional to 621,372.95, 857,486.49 and 349,440.77
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Solution
The fourth proportional to 621,372.95, 857,486.49 and 349,440.77 is: 482,223.66
Step by Step Solution
- Step 1: Write the proportion equation
621,372.95 : 857,486.49 = 349,440.77 : x - Step 2: Convert to fraction form
621,372.95/857,486.49 = 349,440.77/x - Step 3: Cross multiply
621,372.95x = 857,486.49 × 349,440.77 - Step 4: Simplify right side
621,372.95x = 299,640,739,330.20 - Step 5: Solve for x
x = 299,640,739,330.20/621,372.95 - Step 6: Final answer
x = 482,223.66
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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.