Finding the Fourth Proportional to 742,639.08, 1,114,017.48 and 210,163.44
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Solution
The fourth proportional to 742,639.08, 1,114,017.48 and 210,163.44 is: 315,261.82
Step by Step Solution
- Step 1: Write the proportion equation
742,639.08 : 1,114,017.48 = 210,163.44 : x - Step 2: Convert to fraction form
742,639.08/1,114,017.48 = 210,163.44/x - Step 3: Cross multiply
742,639.08x = 1,114,017.48 × 210,163.44 - Step 4: Simplify right side
742,639.08x = 234,125,745,816.93 - Step 5: Solve for x
x = 234,125,745,816.93/742,639.08 - Step 6: Final answer
x = 315,261.82
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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.