Finding the Fourth Proportional to 679,593.09, 1,019,385.05 and 230,630.03
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Solution
The fourth proportional to 679,593.09, 1,019,385.05 and 230,630.03 is: 345,943.50
Step by Step Solution
- Step 1: Write the proportion equation
679,593.09 : 1,019,385.05 = 230,630.03 : x - Step 2: Convert to fraction form
679,593.09/1,019,385.05 = 230,630.03/x - Step 3: Cross multiply
679,593.09x = 1,019,385.05 × 230,630.03 - Step 4: Simplify right side
679,593.09x = 235,100,809,267.01 - Step 5: Solve for x
x = 235,100,809,267.01/679,593.09 - Step 6: Final answer
x = 345,943.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.