Finding the Fourth Proportional to 810,319.36, 1,118,236.44 and 447,768.24
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Solution
The fourth proportional to 810,319.36, 1,118,236.44 and 447,768.24 is: 617,917.81
Step by Step Solution
- Step 1: Write the proportion equation
810,319.36 : 1,118,236.44 = 447,768.24 : x - Step 2: Convert to fraction form
810,319.36/1,118,236.44 = 447,768.24/x - Step 3: Cross multiply
810,319.36x = 1,118,236.44 × 447,768.24 - Step 4: Simplify right side
810,319.36x = 500,710,762,642.67 - Step 5: Solve for x
x = 500,710,762,642.67/810,319.36 - Step 6: Final answer
x = 617,917.81
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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.