Finding the Fourth Proportional to 742,218.21, 1,113,508.62 and 236,779.20
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Solution
The fourth proportional to 742,218.21, 1,113,508.62 and 236,779.20 is: 355,226.64
Step by Step Solution
- Step 1: Write the proportion equation
742,218.21 : 1,113,508.62 = 236,779.20 : x - Step 2: Convert to fraction form
742,218.21/1,113,508.62 = 236,779.20/x - Step 3: Cross multiply
742,218.21x = 1,113,508.62 × 236,779.20 - Step 4: Simplify right side
742,218.21x = 263,655,680,236.70 - Step 5: Solve for x
x = 263,655,680,236.70/742,218.21 - Step 6: Final answer
x = 355,226.64
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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.