Finding the Fourth Proportional to 1,457,538.80, 2,185,530.60 and 615,138.80
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Solution
The fourth proportional to 1,457,538.80, 2,185,530.60 and 615,138.80 is: 922,380.02
Step by Step Solution
- Step 1: Write the proportion equation
1,457,538.80 : 2,185,530.60 = 615,138.80 : x - Step 2: Convert to fraction form
1,457,538.80/2,185,530.60 = 615,138.80/x - Step 3: Cross multiply
1,457,538.80x = 2,185,530.60 × 615,138.80 - Step 4: Simplify right side
1,457,538.80x = 1,344,404,670,647.28 - Step 5: Solve for x
x = 1,344,404,670,647.28/1,457,538.80 - Step 6: Final answer
x = 922,380.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.