Finding the Fourth Proportional to 774,842.99, 1,069,275.30 and 443,654.97
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Solution
The fourth proportional to 774,842.99, 1,069,275.30 and 443,654.97 is: 612,239.27
Step by Step Solution
- Step 1: Write the proportion equation
774,842.99 : 1,069,275.30 = 443,654.97 : x - Step 2: Convert to fraction form
774,842.99/1,069,275.30 = 443,654.97/x - Step 3: Cross multiply
774,842.99x = 1,069,275.30 × 443,654.97 - Step 4: Simplify right side
774,842.99x = 474,389,301,143.24 - Step 5: Solve for x
x = 474,389,301,143.24/774,842.99 - Step 6: Final answer
x = 612,239.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.