Finding the Fourth Proportional to 513,027.80, 769,541.70 and 419,715.80
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Solution
The fourth proportional to 513,027.80, 769,541.70 and 419,715.80 is: 629,573.70
Step by Step Solution
- Step 1: Write the proportion equation
513,027.80 : 769,541.70 = 419,715.80 : x - Step 2: Convert to fraction form
513,027.80/769,541.70 = 419,715.80/x - Step 3: Cross multiply
513,027.80x = 769,541.70 × 419,715.80 - Step 4: Simplify right side
513,027.80x = 322,988,810,248.86 - Step 5: Solve for x
x = 322,988,810,248.86/513,027.80 - Step 6: Final answer
x = 629,573.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.