Finding the Fourth Proportional to 758,769.69, 1,138,964.79 and 326,701.19
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Solution
The fourth proportional to 758,769.69, 1,138,964.79 and 326,701.19 is: 490,400.65
Step by Step Solution
- Step 1: Write the proportion equation
758,769.69 : 1,138,964.79 = 326,701.19 : x - Step 2: Convert to fraction form
758,769.69/1,138,964.79 = 326,701.19/x - Step 3: Cross multiply
758,769.69x = 1,138,964.79 × 326,701.19 - Step 4: Simplify right side
758,769.69x = 372,101,146,566.28 - Step 5: Solve for x
x = 372,101,146,566.28/758,769.69 - Step 6: Final answer
x = 490,400.65
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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.