Finding the Fourth Proportional to 406,403.52, 560,841.36 and 225,118.23
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Solution
The fourth proportional to 406,403.52, 560,841.36 and 225,118.23 is: 310,665.65
Step by Step Solution
- Step 1: Write the proportion equation
406,403.52 : 560,841.36 = 225,118.23 : x - Step 2: Convert to fraction form
406,403.52/560,841.36 = 225,118.23/x - Step 3: Cross multiply
406,403.52x = 560,841.36 × 225,118.23 - Step 4: Simplify right side
406,403.52x = 126,255,614,273.99 - Step 5: Solve for x
x = 126,255,614,273.99/406,403.52 - Step 6: Final answer
x = 310,665.65
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1.5x scale
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.