Finding the Fourth Proportional to 686,447.66, 1,029,660.46 and 213,133.48
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Solution
The fourth proportional to 686,447.66, 1,029,660.46 and 213,133.48 is: 319,696.79
Step by Step Solution
- Step 1: Write the proportion equation
686,447.66 : 1,029,660.46 = 213,133.48 : x - Step 2: Convert to fraction form
686,447.66/1,029,660.46 = 213,133.48/x - Step 3: Cross multiply
686,447.66x = 1,029,660.46 × 213,133.48 - Step 4: Simplify right side
686,447.66x = 219,455,113,951.22 - Step 5: Solve for x
x = 219,455,113,951.22/686,447.66 - Step 6: Final answer
x = 319,696.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.