Finding the Fourth Proportional to 1,272,605.76, 1,908,864.90 and 325,984.68
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Solution
The fourth proportional to 1,272,605.76, 1,908,864.90 and 325,984.68 is: 488,965.82
Step by Step Solution
- Step 1: Write the proportion equation
1,272,605.76 : 1,908,864.90 = 325,984.68 : x - Step 2: Convert to fraction form
1,272,605.76/1,908,864.90 = 325,984.68/x - Step 3: Cross multiply
1,272,605.76x = 1,908,864.90 × 325,984.68 - Step 4: Simplify right side
1,272,605.76x = 622,260,713,589.73 - Step 5: Solve for x
x = 622,260,713,589.73/1,272,605.76 - Step 6: Final answer
x = 488,965.82
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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.