Finding the Fourth Proportional to 1,532,868.50, 2,115,257.31 and 920,657.49
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Solution
The fourth proportional to 1,532,868.50, 2,115,257.31 and 920,657.49 is: 1,270,446.55
Step by Step Solution
- Step 1: Write the proportion equation
1,532,868.50 : 2,115,257.31 = 920,657.49 : x - Step 2: Convert to fraction form
1,532,868.50/2,115,257.31 = 920,657.49/x - Step 3: Cross multiply
1,532,868.50x = 2,115,257.31 × 920,657.49 - Step 4: Simplify right side
1,532,868.50x = 1,947,427,485,728.75 - Step 5: Solve for x
x = 1,947,427,485,728.75/1,532,868.50 - Step 6: Final answer
x = 1,270,446.55
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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.