Finding the Fourth Proportional to 813,437.58, 1,122,611.10 and 450,975.18
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Solution
The fourth proportional to 813,437.58, 1,122,611.10 and 450,975.18 is: 622,383.03
Step by Step Solution
- Step 1: Write the proportion equation
813,437.58 : 1,122,611.10 = 450,975.18 : x - Step 2: Convert to fraction form
813,437.58/1,122,611.10 = 450,975.18/x - Step 3: Cross multiply
813,437.58x = 1,122,611.10 × 450,975.18 - Step 4: Simplify right side
813,437.58x = 506,269,742,892.50 - Step 5: Solve for x
x = 506,269,742,892.50/813,437.58 - Step 6: Final answer
x = 622,383.03
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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.