Finding the Fourth Proportional to 1,988,799.70, 2,981,202 and 639,970.96
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Solution
The fourth proportional to 1,988,799.70, 2,981,202 and 639,970.96 is: 959,313.65
Step by Step Solution
- Step 1: Write the proportion equation
1,988,799.70 : 2,981,202 = 639,970.96 : x - Step 2: Convert to fraction form
1,988,799.70/2,981,202 = 639,970.96/x - Step 3: Cross multiply
1,988,799.70x = 2,981,202 × 639,970.96 - Step 4: Simplify right side
1,988,799.70x = 1,907,882,705,893.92 - Step 5: Solve for x
x = 1,907,882,705,893.92/1,988,799.70 - Step 6: Final answer
x = 959,313.65
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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.