Finding the Fourth Proportional to 870,999.99, 1,201,939.36 and 483,840.50
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Solution
The fourth proportional to 870,999.99, 1,201,939.36 and 483,840.50 is: 667,677.32
Step by Step Solution
- Step 1: Write the proportion equation
870,999.99 : 1,201,939.36 = 483,840.50 : x - Step 2: Convert to fraction form
870,999.99/1,201,939.36 = 483,840.50/x - Step 3: Cross multiply
870,999.99x = 1,201,939.36 × 483,840.50 - Step 4: Simplify right side
870,999.99x = 581,546,932,483.18 - Step 5: Solve for x
x = 581,546,932,483.18/870,999.99 - Step 6: Final answer
x = 667,677.32
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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.