Finding the Fourth Proportional to 548,347.30, 756,721.29 and 318,959.62
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Solution
The fourth proportional to 548,347.30, 756,721.29 and 318,959.62 is: 440,165.45
Step by Step Solution
- Step 1: Write the proportion equation
548,347.30 : 756,721.29 = 318,959.62 : x - Step 2: Convert to fraction form
548,347.30/756,721.29 = 318,959.62/x - Step 3: Cross multiply
548,347.30x = 756,721.29 × 318,959.62 - Step 4: Simplify right side
548,347.30x = 241,363,535,104.31 - Step 5: Solve for x
x = 241,363,535,104.31/548,347.30 - Step 6: Final answer
x = 440,165.45
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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.