Finding the Fourth Proportional to 684,979.56, 1,023,269.09 and 493,808.42
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Solution
The fourth proportional to 684,979.56, 1,023,269.09 and 493,808.42 is: 737,684.63
Step by Step Solution
- Step 1: Write the proportion equation
684,979.56 : 1,023,269.09 = 493,808.42 : x - Step 2: Convert to fraction form
684,979.56/1,023,269.09 = 493,808.42/x - Step 3: Cross multiply
684,979.56x = 1,023,269.09 × 493,808.42 - Step 4: Simplify right side
684,979.56x = 505,298,892,567.74 - Step 5: Solve for x
x = 505,298,892,567.74/684,979.56 - Step 6: Final answer
x = 737,684.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.