Finding the Fourth Proportional to 586,675.68, 809,612.28 and 318,403.68
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Solution
The fourth proportional to 586,675.68, 809,612.28 and 318,403.68 is: 439,396.99
Step by Step Solution
- Step 1: Write the proportion equation
586,675.68 : 809,612.28 = 318,403.68 : x - Step 2: Convert to fraction form
586,675.68/809,612.28 = 318,403.68/x - Step 3: Cross multiply
586,675.68x = 809,612.28 × 318,403.68 - Step 4: Simplify right side
586,675.68x = 257,783,529,325.19 - Step 5: Solve for x
x = 257,783,529,325.19/586,675.68 - Step 6: Final answer
x = 439,396.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.