Finding the Fourth Proportional to 534,369.91, 737,431.56 and 289,357.33
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Solution
The fourth proportional to 534,369.91, 737,431.56 and 289,357.33 is: 399,313.70
Step by Step Solution
- Step 1: Write the proportion equation
534,369.91 : 737,431.56 = 289,357.33 : x - Step 2: Convert to fraction form
534,369.91/737,431.56 = 289,357.33/x - Step 3: Cross multiply
534,369.91x = 737,431.56 × 289,357.33 - Step 4: Simplify right side
534,369.91x = 213,381,227,259.34 - Step 5: Solve for x
x = 213,381,227,259.34/534,369.91 - Step 6: Final answer
x = 399,313.70
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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.