Finding the Fourth Proportional to 812,530.04, 1,121,277.60 and 449,946.09
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Solution
The fourth proportional to 812,530.04, 1,121,277.60 and 449,946.09 is: 620,917.94
Step by Step Solution
- Step 1: Write the proportion equation
812,530.04 : 1,121,277.60 = 449,946.09 : x - Step 2: Convert to fraction form
812,530.04/1,121,277.60 = 449,946.09/x - Step 3: Cross multiply
812,530.04x = 1,121,277.60 × 449,946.09 - Step 4: Simplify right side
812,530.04x = 504,514,471,924.58 - Step 5: Solve for x
x = 504,514,471,924.58/812,530.04 - Step 6: Final answer
x = 620,917.94
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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.