Finding the Fourth Proportional to 777,844.69, 1,073,425.67 and 438,325.09
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Solution
The fourth proportional to 777,844.69, 1,073,425.67 and 438,325.09 is: 604,888.62
Step by Step Solution
- Step 1: Write the proportion equation
777,844.69 : 1,073,425.67 = 438,325.09 : x - Step 2: Convert to fraction form
777,844.69/1,073,425.67 = 438,325.09/x - Step 3: Cross multiply
777,844.69x = 1,073,425.67 × 438,325.09 - Step 4: Simplify right side
777,844.69x = 470,509,400,179.59 - Step 5: Solve for x
x = 470,509,400,179.59/777,844.69 - Step 6: Final answer
x = 604,888.62
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1.5x scale
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.