Finding the Fourth Proportional to 485,014.75, 669,214.79 and 294,075.07
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Solution
The fourth proportional to 485,014.75, 669,214.79 and 294,075.07 is: 405,759.59
Step by Step Solution
- Step 1: Write the proportion equation
485,014.75 : 669,214.79 = 294,075.07 : x - Step 2: Convert to fraction form
485,014.75/669,214.79 = 294,075.07/x - Step 3: Cross multiply
485,014.75x = 669,214.79 × 294,075.07 - Step 4: Simplify right side
485,014.75x = 196,799,384,541.25 - Step 5: Solve for x
x = 196,799,384,541.25/485,014.75 - Step 6: Final answer
x = 405,759.59
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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.