Finding the Fourth Proportional to 758,627.09, 1,046,816.12 and 419,075.09
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Solution
The fourth proportional to 758,627.09, 1,046,816.12 and 419,075.09 is: 578,274.31
Step by Step Solution
- Step 1: Write the proportion equation
758,627.09 : 1,046,816.12 = 419,075.09 : x - Step 2: Convert to fraction form
758,627.09/1,046,816.12 = 419,075.09/x - Step 3: Cross multiply
758,627.09x = 1,046,816.12 × 419,075.09 - Step 4: Simplify right side
758,627.09x = 438,694,555,516.06 - Step 5: Solve for x
x = 438,694,555,516.06/758,627.09 - Step 6: Final answer
x = 578,274.31
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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.