Finding the Fourth Proportional to 867,623.13, 1,197,311.57 and 499,965.19
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Solution
The fourth proportional to 867,623.13, 1,197,311.57 and 499,965.19 is: 689,947.15
Step by Step Solution
- Step 1: Write the proportion equation
867,623.13 : 1,197,311.57 = 499,965.19 : x - Step 2: Convert to fraction form
867,623.13/1,197,311.57 = 499,965.19/x - Step 3: Cross multiply
867,623.13x = 1,197,311.57 × 499,965.19 - Step 4: Simplify right side
867,623.13x = 598,614,100,597.69 - Step 5: Solve for x
x = 598,614,100,597.69/867,623.13 - Step 6: Final answer
x = 689,947.15
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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.