Finding the Fourth Proportional to 875,515.80, 1,313,273.70 and 342,859.80
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Solution
The fourth proportional to 875,515.80, 1,313,273.70 and 342,859.80 is: 514,289.70
Step by Step Solution
- Step 1: Write the proportion equation
875,515.80 : 1,313,273.70 = 342,859.80 : x - Step 2: Convert to fraction form
875,515.80/1,313,273.70 = 342,859.80/x - Step 3: Cross multiply
875,515.80x = 1,313,273.70 × 342,859.80 - Step 4: Simplify right side
875,515.80x = 450,268,758,127.26 - Step 5: Solve for x
x = 450,268,758,127.26/875,515.80 - Step 6: Final answer
x = 514,289.70
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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.