Finding the Fourth Proportional to 956,817.18, 1,321,750.71 and 906,428.70
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Solution
The fourth proportional to 956,817.18, 1,321,750.71 and 906,428.70 is: 1,252,143.88
Step by Step Solution
- Step 1: Write the proportion equation
956,817.18 : 1,321,750.71 = 906,428.70 : x - Step 2: Convert to fraction form
956,817.18/1,321,750.71 = 906,428.70/x - Step 3: Cross multiply
956,817.18x = 1,321,750.71 × 906,428.70 - Step 4: Simplify right side
956,817.18x = 1,198,072,777,789.38 - Step 5: Solve for x
x = 1,198,072,777,789.38/956,817.18 - Step 6: Final answer
x = 1,252,143.88
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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.