Finding the Fourth Proportional to 628,883.85, 867,840.75 and 349,480.09
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Solution
The fourth proportional to 628,883.85, 867,840.75 and 349,480.09 is: 482,271.99
Step by Step Solution
- Step 1: Write the proportion equation
628,883.85 : 867,840.75 = 349,480.09 : x - Step 2: Convert to fraction form
628,883.85/867,840.75 = 349,480.09/x - Step 3: Cross multiply
628,883.85x = 867,840.75 × 349,480.09 - Step 4: Simplify right side
628,883.85x = 303,293,064,500.47 - Step 5: Solve for x
x = 303,293,064,500.47/628,883.85 - Step 6: Final answer
x = 482,271.99
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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.