Finding the Fourth Proportional to 621,054.98, 857,059.46 and 349,120.49
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Solution
The fourth proportional to 621,054.98, 857,059.46 and 349,120.49 is: 481,788.28
Step by Step Solution
- Step 1: Write the proportion equation
621,054.98 : 857,059.46 = 349,120.49 : x - Step 2: Convert to fraction form
621,054.98/857,059.46 = 349,120.49/x - Step 3: Cross multiply
621,054.98x = 857,059.46 × 349,120.49 - Step 4: Simplify right side
621,054.98x = 299,217,012,603.44 - Step 5: Solve for x
x = 299,217,012,603.44/621,054.98 - Step 6: Final answer
x = 481,788.28
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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.