Finding the Fourth Proportional to 685,569.60, 1,028,186.64 and 286,213.68
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Solution
The fourth proportional to 685,569.60, 1,028,186.64 and 286,213.68 is: 429,250.48
Step by Step Solution
- Step 1: Write the proportion equation
685,569.60 : 1,028,186.64 = 286,213.68 : x - Step 2: Convert to fraction form
685,569.60/1,028,186.64 = 286,213.68/x - Step 3: Cross multiply
685,569.60x = 1,028,186.64 × 286,213.68 - Step 4: Simplify right side
685,569.60x = 294,281,081,961.24 - Step 5: Solve for x
x = 294,281,081,961.24/685,569.60 - Step 6: Final answer
x = 429,250.48
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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.