Finding the Fourth Proportional to 586,670.75, 809,605.97 and 318,398.75
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Solution
The fourth proportional to 586,670.75, 809,605.97 and 318,398.75 is: 439,390.45
Step by Step Solution
- Step 1: Write the proportion equation
586,670.75 : 809,605.97 = 318,398.75 : x - Step 2: Convert to fraction form
586,670.75/809,605.97 = 318,398.75/x - Step 3: Cross multiply
586,670.75x = 809,605.97 × 318,398.75 - Step 4: Simplify right side
586,670.75x = 257,777,523,200.51 - Step 5: Solve for x
x = 257,777,523,200.51/586,670.75 - Step 6: Final answer
x = 439,390.45
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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.