Finding the Fourth Proportional to 685,583.60, 1,028,207.60 and 286,227.68
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Solution
The fourth proportional to 685,583.60, 1,028,207.60 and 286,227.68 is: 429,271.46
Step by Step Solution
- Step 1: Write the proportion equation
685,583.60 : 1,028,207.60 = 286,227.68 : x - Step 2: Convert to fraction form
685,583.60/1,028,207.60 = 286,227.68/x - Step 3: Cross multiply
685,583.60x = 1,028,207.60 × 286,227.68 - Step 4: Simplify right side
685,583.60x = 294,301,475,906.37 - Step 5: Solve for x
x = 294,301,475,906.37/685,583.60 - Step 6: Final answer
x = 429,271.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.