Finding the Fourth Proportional to 742,638.08, 1,114,015.98 and 210,162.44
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Solution
The fourth proportional to 742,638.08, 1,114,015.98 and 210,162.44 is: 315,260.32
Step by Step Solution
- Step 1: Write the proportion equation
742,638.08 : 1,114,015.98 = 210,162.44 : x - Step 2: Convert to fraction form
742,638.08/1,114,015.98 = 210,162.44/x - Step 3: Cross multiply
742,638.08x = 1,114,015.98 × 210,162.44 - Step 4: Simplify right side
742,638.08x = 234,124,320,128.94 - Step 5: Solve for x
x = 234,124,320,128.94/742,638.08 - Step 6: Final answer
x = 315,260.32
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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.