Finding the Fourth Proportional to 1,137,212.71, 1,569,361.14 and 620,970.21
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Solution
The fourth proportional to 1,137,212.71, 1,569,361.14 and 620,970.21 is: 856,943.03
Step by Step Solution
- Step 1: Write the proportion equation
1,137,212.71 : 1,569,361.14 = 620,970.21 : x - Step 2: Convert to fraction form
1,137,212.71/1,569,361.14 = 620,970.21/x - Step 3: Cross multiply
1,137,212.71x = 1,569,361.14 × 620,970.21 - Step 4: Simplify right side
1,137,212.71x = 974,526,505,719.98 - Step 5: Solve for x
x = 974,526,505,719.98/1,137,212.71 - Step 6: Final answer
x = 856,943.03
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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.