Finding the Fourth Proportional to 512,518.64, 707,209.80 and 286,173.68
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Solution
The fourth proportional to 512,518.64, 707,209.80 and 286,173.68 is: 394,882.87
Step by Step Solution
- Step 1: Write the proportion equation
512,518.64 : 707,209.80 = 286,173.68 : x - Step 2: Convert to fraction form
512,518.64/707,209.80 = 286,173.68/x - Step 3: Cross multiply
512,518.64x = 707,209.80 × 286,173.68 - Step 4: Simplify right side
512,518.64x = 202,384,830,998.06 - Step 5: Solve for x
x = 202,384,830,998.06/512,518.64 - Step 6: Final answer
x = 394,882.87
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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.