Finding the Fourth Proportional to 920,811.62, 1,379,715.68 and 565,074.20
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Solution
The fourth proportional to 920,811.62, 1,379,715.68 and 565,074.20 is: 846,689.72
Step by Step Solution
- Step 1: Write the proportion equation
920,811.62 : 1,379,715.68 = 565,074.20 : x - Step 2: Convert to fraction form
920,811.62/1,379,715.68 = 565,074.20/x - Step 3: Cross multiply
920,811.62x = 1,379,715.68 × 565,074.20 - Step 4: Simplify right side
920,811.62x = 779,641,734,103.46 - Step 5: Solve for x
x = 779,641,734,103.46/920,811.62 - Step 6: Final answer
x = 846,689.72
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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.