Finding the Fourth Proportional to 578,197.80, 867,296.70 and 490,717.80
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Solution
The fourth proportional to 578,197.80, 867,296.70 and 490,717.80 is: 736,076.70
Step by Step Solution
- Step 1: Write the proportion equation
578,197.80 : 867,296.70 = 490,717.80 : x - Step 2: Convert to fraction form
578,197.80/867,296.70 = 490,717.80/x - Step 3: Cross multiply
578,197.80x = 867,296.70 × 490,717.80 - Step 4: Simplify right side
578,197.80x = 425,597,928,571.26 - Step 5: Solve for x
x = 425,597,928,571.26/578,197.80 - Step 6: Final answer
x = 736,076.70
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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.