Finding the Fourth Proportional to 813,202.21, 1,122,225.63 and 450,632.12
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Solution
The fourth proportional to 813,202.21, 1,122,225.63 and 450,632.12 is: 621,875.97
Step by Step Solution
- Step 1: Write the proportion equation
813,202.21 : 1,122,225.63 = 450,632.12 : x - Step 2: Convert to fraction form
813,202.21/1,122,225.63 = 450,632.12/x - Step 3: Cross multiply
813,202.21x = 1,122,225.63 × 450,632.12 - Step 4: Simplify right side
813,202.21x = 505,710,914,765.24 - Step 5: Solve for x
x = 505,710,914,765.24/813,202.21 - Step 6: Final answer
x = 621,875.97
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1.5x scale
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.