Finding the Fourth Proportional to 695,912.20, 960,821.40 and 534,478.75
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Solution
The fourth proportional to 695,912.20, 960,821.40 and 534,478.75 is: 737,935.94
Step by Step Solution
- Step 1: Write the proportion equation
695,912.20 : 960,821.40 = 534,478.75 : x - Step 2: Convert to fraction form
695,912.20/960,821.40 = 534,478.75/x - Step 3: Cross multiply
695,912.20x = 960,821.40 × 534,478.75 - Step 4: Simplify right side
695,912.20x = 513,538,620,845.25 - Step 5: Solve for x
x = 513,538,620,845.25/695,912.20 - Step 6: Final answer
x = 737,935.94
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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.