Finding the Fourth Proportional to 545.80, 814.99 and 473.80
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Solution
The fourth proportional to 545.80, 814.99 and 473.80 is: 707.48
Step by Step Solution
- Step 1: Write the proportion equation
545.80 : 814.99 = 473.80 : x - Step 2: Convert to fraction form
545.80/814.99 = 473.80/x - Step 3: Cross multiply
545.80x = 814.99 × 473.80 - Step 4: Simplify right side
545.80x = 386,142.26 - Step 5: Solve for x
x = 386,142.26/545.80 - Step 6: Final answer
x = 707.48
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.