Finding the Fourth Proportional to 813,163.24, 1,122,204.54 and 490,867.48
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Solution
The fourth proportional to 813,163.24, 1,122,204.54 and 490,867.48 is: 677,420.83
Step by Step Solution
- Step 1: Write the proportion equation
813,163.24 : 1,122,204.54 = 490,867.48 : x - Step 2: Convert to fraction form
813,163.24/1,122,204.54 = 490,867.48/x - Step 3: Cross multiply
813,163.24x = 1,122,204.54 × 490,867.48 - Step 4: Simplify right side
813,163.24x = 550,853,714,594.36 - Step 5: Solve for x
x = 550,853,714,594.36/813,163.24 - Step 6: Final answer
x = 677,420.83
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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.