Finding the Fourth Proportional to 1,640,879.67, 2,264,539.44 and 905,975.66
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Solution
The fourth proportional to 1,640,879.67, 2,264,539.44 and 905,975.66 is: 1,250,315.70
Step by Step Solution
- Step 1: Write the proportion equation
1,640,879.67 : 2,264,539.44 = 905,975.66 : x - Step 2: Convert to fraction form
1,640,879.67/2,264,539.44 = 905,975.66/x - Step 3: Cross multiply
1,640,879.67x = 2,264,539.44 × 905,975.66 - Step 4: Simplify right side
1,640,879.67x = 2,051,617,613,750.03 - Step 5: Solve for x
x = 2,051,617,613,750.03/1,640,879.67 - Step 6: Final answer
x = 1,250,315.70
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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.