Finding the Fourth Proportional to 539,976.94, 745,104.31 and 298,245.09
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Solution
The fourth proportional to 539,976.94, 745,104.31 and 298,245.09 is: 411,542.95
Step by Step Solution
- Step 1: Write the proportion equation
539,976.94 : 745,104.31 = 298,245.09 : x - Step 2: Convert to fraction form
539,976.94/745,104.31 = 298,245.09/x - Step 3: Cross multiply
539,976.94x = 745,104.31 × 298,245.09 - Step 4: Simplify right side
539,976.94x = 222,223,700,504.11 - Step 5: Solve for x
x = 222,223,700,504.11/539,976.94 - Step 6: Final answer
x = 411,542.95
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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.