Finding the Fourth Proportional to 687,628.80, 1,030,821.12 and 244,293.12
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Solution
The fourth proportional to 687,628.80, 1,030,821.12 and 244,293.12 is: 366,218.67
Step by Step Solution
- Step 1: Write the proportion equation
687,628.80 : 1,030,821.12 = 244,293.12 : x - Step 2: Convert to fraction form
687,628.80/1,030,821.12 = 244,293.12/x - Step 3: Cross multiply
687,628.80x = 1,030,821.12 × 244,293.12 - Step 4: Simplify right side
687,628.80x = 251,822,507,566.69 - Step 5: Solve for x
x = 251,822,507,566.69/687,628.80 - Step 6: Final answer
x = 366,218.67
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1.5x scale
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.