Finding the Fourth Proportional to 628,888.78, 867,887.63 and 353,294.99
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Solution
The fourth proportional to 628,888.78, 867,887.63 and 353,294.99 is: 487,558.95
Step by Step Solution
- Step 1: Write the proportion equation
628,888.78 : 867,887.63 = 353,294.99 : x - Step 2: Convert to fraction form
628,888.78/867,887.63 = 353,294.99/x - Step 3: Cross multiply
628,888.78x = 867,887.63 × 353,294.99 - Step 4: Simplify right side
628,888.78x = 306,620,351,561.97 - Step 5: Solve for x
x = 306,620,351,561.97/628,888.78 - Step 6: Final answer
x = 487,558.95
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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.