Finding the Fourth Proportional to 879,269.49, 1,318,215.20 and 347,188.79
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Solution
The fourth proportional to 879,269.49, 1,318,215.20 and 347,188.79 is: 520,511.12
Step by Step Solution
- Step 1: Write the proportion equation
879,269.49 : 1,318,215.20 = 347,188.79 : x - Step 2: Convert to fraction form
879,269.49/1,318,215.20 = 347,188.79/x - Step 3: Cross multiply
879,269.49x = 1,318,215.20 × 347,188.79 - Step 4: Simplify right side
879,269.49x = 457,669,543,109.16 - Step 5: Solve for x
x = 457,669,543,109.16/879,269.49 - Step 6: Final answer
x = 520,511.12
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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.