Finding the Fourth Proportional to 502,137.09, 692,748.86 and 320,801.99
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Solution
The fourth proportional to 502,137.09, 692,748.86 and 320,801.99 is: 442,578.75
Step by Step Solution
- Step 1: Write the proportion equation
502,137.09 : 692,748.86 = 320,801.99 : x - Step 2: Convert to fraction form
502,137.09/692,748.86 = 320,801.99/x - Step 3: Cross multiply
502,137.09x = 692,748.86 × 320,801.99 - Step 4: Simplify right side
502,137.09x = 222,235,207,790.48 - Step 5: Solve for x
x = 222,235,207,790.48/502,137.09 - Step 6: Final answer
x = 442,578.75
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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.