Finding the Fourth Proportional to 746,999.68, 1,030,842.84 and 407,480.08
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Solution
The fourth proportional to 746,999.68, 1,030,842.84 and 407,480.08 is: 562,313.39
Step by Step Solution
- Step 1: Write the proportion equation
746,999.68 : 1,030,842.84 = 407,480.08 : x - Step 2: Convert to fraction form
746,999.68/1,030,842.84 = 407,480.08/x - Step 3: Cross multiply
746,999.68x = 1,030,842.84 × 407,480.08 - Step 4: Simplify right side
746,999.68x = 420,047,922,910.63 - Step 5: Solve for x
x = 420,047,922,910.63/746,999.68 - Step 6: Final answer
x = 562,313.39
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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.