Finding the Fourth Proportional to 485,957.08, 728,987.46 and 205,502.68
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Solution
The fourth proportional to 485,957.08, 728,987.46 and 205,502.68 is: 308,275.94
Step by Step Solution
- Step 1: Write the proportion equation
485,957.08 : 728,987.46 = 205,502.68 : x - Step 2: Convert to fraction form
485,957.08/728,987.46 = 205,502.68/x - Step 3: Cross multiply
485,957.08x = 728,987.46 × 205,502.68 - Step 4: Simplify right side
485,957.08x = 149,808,876,716.39 - Step 5: Solve for x
x = 149,808,876,716.39/485,957.08 - Step 6: Final answer
x = 308,275.94
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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.