Finding the Fourth Proportional to 813,202.55, 1,122,226.11 and 450,632.47
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Solution
The fourth proportional to 813,202.55, 1,122,226.11 and 450,632.47 is: 621,876.45
Step by Step Solution
- Step 1: Write the proportion equation
813,202.55 : 1,122,226.11 = 450,632.47 : x - Step 2: Convert to fraction form
813,202.55/1,122,226.11 = 450,632.47/x - Step 3: Cross multiply
813,202.55x = 1,122,226.11 × 450,632.47 - Step 4: Simplify right side
813,202.55x = 505,711,518,236.66 - Step 5: Solve for x
x = 505,711,518,236.66/813,202.55 - Step 6: Final answer
x = 621,876.45
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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.