Finding the Fourth Proportional to 781,992.18, 1,173,056.64 and 221,026.68
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Solution
The fourth proportional to 781,992.18, 1,173,056.64 and 221,026.68 is: 331,559.34
Step by Step Solution
- Step 1: Write the proportion equation
781,992.18 : 1,173,056.64 = 221,026.68 : x - Step 2: Convert to fraction form
781,992.18/1,173,056.64 = 221,026.68/x - Step 3: Cross multiply
781,992.18x = 1,173,056.64 × 221,026.68 - Step 4: Simplify right side
781,992.18x = 259,276,814,591.16 - Step 5: Solve for x
x = 259,276,814,591.16/781,992.18 - Step 6: Final answer
x = 331,559.34
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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.