Finding the Fourth Proportional to 1,137,438.72, 1,569,660.12 and 628,138.80
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Solution
The fourth proportional to 1,137,438.72, 1,569,660.12 and 628,138.80 is: 866,828.61
Step by Step Solution
- Step 1: Write the proportion equation
1,137,438.72 : 1,569,660.12 = 628,138.80 : x - Step 2: Convert to fraction form
1,137,438.72/1,569,660.12 = 628,138.80/x - Step 3: Cross multiply
1,137,438.72x = 1,569,660.12 × 628,138.80 - Step 4: Simplify right side
1,137,438.72x = 985,964,424,184.66 - Step 5: Solve for x
x = 985,964,424,184.66/1,137,438.72 - Step 6: Final answer
x = 866,828.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.