Finding the Fourth Proportional to 726,085.80, 1,001,998.26 and 408,133.80
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Solution
The fourth proportional to 726,085.80, 1,001,998.26 and 408,133.80 is: 563,224.56
Step by Step Solution
- Step 1: Write the proportion equation
726,085.80 : 1,001,998.26 = 408,133.80 : x - Step 2: Convert to fraction form
726,085.80/1,001,998.26 = 408,133.80/x - Step 3: Cross multiply
726,085.80x = 1,001,998.26 × 408,133.80 - Step 4: Simplify right side
726,085.80x = 408,949,357,447.19 - Step 5: Solve for x
x = 408,949,357,447.19/726,085.80 - Step 6: Final answer
x = 563,224.56
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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.