Finding the Fourth Proportional to 664,839.12, 917,476.56 and 363,033.12
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Solution
The fourth proportional to 664,839.12, 917,476.56 and 363,033.12 is: 500,984.93
Step by Step Solution
- Step 1: Write the proportion equation
664,839.12 : 917,476.56 = 363,033.12 : x - Step 2: Convert to fraction form
664,839.12/917,476.56 = 363,033.12/x - Step 3: Cross multiply
664,839.12x = 917,476.56 × 363,033.12 - Step 4: Simplify right side
664,839.12x = 333,074,378,103.67 - Step 5: Solve for x
x = 333,074,378,103.67/664,839.12 - Step 6: Final answer
x = 500,984.93
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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.