Finding the Fourth Proportional to 397,986.05, 596,480.80 and 313,412.19
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Solution
The fourth proportional to 397,986.05, 596,480.80 and 313,412.19 is: 469,725.89
Step by Step Solution
- Step 1: Write the proportion equation
397,986.05 : 596,480.80 = 313,412.19 : x - Step 2: Convert to fraction form
397,986.05/596,480.80 = 313,412.19/x - Step 3: Cross multiply
397,986.05x = 596,480.80 × 313,412.19 - Step 4: Simplify right side
397,986.05x = 186,944,352,721.52 - Step 5: Solve for x
x = 186,944,352,721.52/397,986.05 - Step 6: Final answer
x = 469,725.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.