Finding the Fourth Proportional to 664,584.13, 917,114.36 and 378,098.07
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Solution
The fourth proportional to 664,584.13, 917,114.36 and 378,098.07 is: 521,768.66
Step by Step Solution
- Step 1: Write the proportion equation
664,584.13 : 917,114.36 = 378,098.07 : x - Step 2: Convert to fraction form
664,584.13/917,114.36 = 378,098.07/x - Step 3: Cross multiply
664,584.13x = 917,114.36 × 378,098.07 - Step 4: Simplify right side
664,584.13x = 346,759,169,485.29 - Step 5: Solve for x
x = 346,759,169,485.29/664,584.13 - Step 6: Final answer
x = 521,768.66
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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.