Finding the Fourth Proportional to 506,571.13, 699,069.58 and 280,216.63
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Solution
The fourth proportional to 506,571.13, 699,069.58 and 280,216.63 is: 386,699.74
Step by Step Solution
- Step 1: Write the proportion equation
506,571.13 : 699,069.58 = 280,216.63 : x - Step 2: Convert to fraction form
506,571.13/699,069.58 = 280,216.63/x - Step 3: Cross multiply
506,571.13x = 699,069.58 × 280,216.63 - Step 4: Simplify right side
506,571.13x = 195,890,921,843.12 - Step 5: Solve for x
x = 195,890,921,843.12/506,571.13 - Step 6: Final answer
x = 386,699.74
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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.