Finding the Fourth Proportional to 616,322.51, 850,636.64 and 398,798.99
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Solution
The fourth proportional to 616,322.51, 850,636.64 and 398,798.99 is: 550,414.80
Step by Step Solution
- Step 1: Write the proportion equation
616,322.51 : 850,636.64 = 398,798.99 : x - Step 2: Convert to fraction form
616,322.51/850,636.64 = 398,798.99/x - Step 3: Cross multiply
616,322.51x = 850,636.64 × 398,798.99 - Step 4: Simplify right side
616,322.51x = 339,233,030,895.00 - Step 5: Solve for x
x = 339,233,030,895.00/616,322.51 - Step 6: Final answer
x = 550,414.80
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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.