Finding the Fourth Proportional to 485,315.62, 728,077.11 and 169,782.82
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Solution
The fourth proportional to 485,315.62, 728,077.11 and 169,782.82 is: 254,710.50
Step by Step Solution
- Step 1: Write the proportion equation
485,315.62 : 728,077.11 = 169,782.82 : x - Step 2: Convert to fraction form
485,315.62/728,077.11 = 169,782.82/x - Step 3: Cross multiply
485,315.62x = 728,077.11 × 169,782.82 - Step 4: Simplify right side
485,315.62x = 123,614,984,913.25 - Step 5: Solve for x
x = 123,614,984,913.25/485,315.62 - Step 6: Final answer
x = 254,710.50
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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.