Finding the Fourth Proportional to 545,715.34, 753,109.84 and 303,997.84
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Solution
The fourth proportional to 545,715.34, 753,109.84 and 303,997.84 is: 419,529.65
Step by Step Solution
- Step 1: Write the proportion equation
545,715.34 : 753,109.84 = 303,997.84 : x - Step 2: Convert to fraction form
545,715.34/753,109.84 = 303,997.84/x - Step 3: Cross multiply
545,715.34x = 753,109.84 × 303,997.84 - Step 4: Simplify right side
545,715.34x = 228,943,764,642.75 - Step 5: Solve for x
x = 228,943,764,642.75/545,715.34 - Step 6: Final answer
x = 419,529.65
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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.