Finding the Fourth Proportional to 1,389,743.40, 2,084,974.44 and 813,852.96
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Solution
The fourth proportional to 1,389,743.40, 2,084,974.44 and 813,852.96 is: 1,220,989.87
Step by Step Solution
- Step 1: Write the proportion equation
1,389,743.40 : 2,084,974.44 = 813,852.96 : x - Step 2: Convert to fraction form
1,389,743.40/2,084,974.44 = 813,852.96/x - Step 3: Cross multiply
1,389,743.40x = 2,084,974.44 × 813,852.96 - Step 4: Simplify right side
1,389,743.40x = 1,696,862,619,518.34 - Step 5: Solve for x
x = 1,696,862,619,518.34/1,389,743.40 - Step 6: Final answer
x = 1,220,989.87
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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.