Finding the Fourth Proportional to 3,319,138.65, 4,979,593.93 and 1,189,438.05
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Solution
The fourth proportional to 3,319,138.65, 4,979,593.93 and 1,189,438.05 is: 1,784,474.56
Step by Step Solution
- Step 1: Write the proportion equation
3,319,138.65 : 4,979,593.93 = 1,189,438.05 : x - Step 2: Convert to fraction form
3,319,138.65/4,979,593.93 = 1,189,438.05/x - Step 3: Cross multiply
3,319,138.65x = 4,979,593.93 × 1,189,438.05 - Step 4: Simplify right side
3,319,138.65x = 5,922,918,466,460.50 - Step 5: Solve for x
x = 5,922,918,466,460.50/3,319,138.65 - Step 6: Final answer
x = 1,784,474.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.