Finding the Fourth Proportional to 426,759.28, 640,454.65 and 202,120.11
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Solution
The fourth proportional to 426,759.28, 640,454.65 and 202,120.11 is: 303,329.70
Step by Step Solution
- Step 1: Write the proportion equation
426,759.28 : 640,454.65 = 202,120.11 : x - Step 2: Convert to fraction form
426,759.28/640,454.65 = 202,120.11/x - Step 3: Cross multiply
426,759.28x = 640,454.65 × 202,120.11 - Step 4: Simplify right side
426,759.28x = 129,448,763,802.71 - Step 5: Solve for x
x = 129,448,763,802.71/426,759.28 - Step 6: Final answer
x = 303,329.70
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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.