Finding the Fourth Proportional to 746,629.12, 1,030,436.96 and 471,386.88
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Solution
The fourth proportional to 746,629.12, 1,030,436.96 and 471,386.88 is: 650,569.94
Step by Step Solution
- Step 1: Write the proportion equation
746,629.12 : 1,030,436.96 = 471,386.88 : x - Step 2: Convert to fraction form
746,629.12/1,030,436.96 = 471,386.88/x - Step 3: Cross multiply
746,629.12x = 1,030,436.96 × 471,386.88 - Step 4: Simplify right side
746,629.12x = 485,734,463,611.09 - Step 5: Solve for x
x = 485,734,463,611.09/746,629.12 - Step 6: Final answer
x = 650,569.94
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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.