Finding the Fourth Proportional to 890,664.66, 1,335,985.65 and 216,747.09
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Solution
The fourth proportional to 890,664.66, 1,335,985.65 and 216,747.09 is: 325,117.88
Step by Step Solution
- Step 1: Write the proportion equation
890,664.66 : 1,335,985.65 = 216,747.09 : x - Step 2: Convert to fraction form
890,664.66/1,335,985.65 = 216,747.09/x - Step 3: Cross multiply
890,664.66x = 1,335,985.65 × 216,747.09 - Step 4: Simplify right side
890,664.66x = 289,571,001,919.26 - Step 5: Solve for x
x = 289,571,001,919.26/890,664.66 - Step 6: Final answer
x = 325,117.88
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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.