Finding the Fourth Proportional to 728,644.48, 1,092,969.44 and 223,203.44
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Solution
The fourth proportional to 728,644.48, 1,092,969.44 and 223,203.44 is: 334,805.99
Step by Step Solution
- Step 1: Write the proportion equation
728,644.48 : 1,092,969.44 = 223,203.44 : x - Step 2: Convert to fraction form
728,644.48/1,092,969.44 = 223,203.44/x - Step 3: Cross multiply
728,644.48x = 1,092,969.44 × 223,203.44 - Step 4: Simplify right side
728,644.48x = 243,954,538,822.87 - Step 5: Solve for x
x = 243,954,538,822.87/728,644.48 - Step 6: Final answer
x = 334,805.99
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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.