Finding the Fourth Proportional to 628,606.26, 867,495.06 and 342,144.90
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Solution
The fourth proportional to 628,606.26, 867,495.06 and 342,144.90 is: 472,169.99
Step by Step Solution
- Step 1: Write the proportion equation
628,606.26 : 867,495.06 = 342,144.90 : x - Step 2: Convert to fraction form
628,606.26/867,495.06 = 342,144.90/x - Step 3: Cross multiply
628,606.26x = 867,495.06 × 342,144.90 - Step 4: Simplify right side
628,606.26x = 296,809,010,554.19 - Step 5: Solve for x
x = 296,809,010,554.19/628,606.26 - Step 6: Final answer
x = 472,169.99
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1.5x scale
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.