Finding the Fourth Proportional to 1,218,563.32, 1,681,087.98 and 734,859.68
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Solution
The fourth proportional to 1,218,563.32, 1,681,087.98 and 734,859.68 is: 1,013,787.10
Step by Step Solution
- Step 1: Write the proportion equation
1,218,563.32 : 1,681,087.98 = 734,859.68 : x - Step 2: Convert to fraction form
1,218,563.32/1,681,087.98 = 734,859.68/x - Step 3: Cross multiply
1,218,563.32x = 1,681,087.98 × 734,859.68 - Step 4: Simplify right side
1,218,563.32x = 1,235,363,775,034.65 - Step 5: Solve for x
x = 1,235,363,775,034.65/1,218,563.32 - Step 6: Final answer
x = 1,013,787.10
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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.