Finding the Fourth Proportional to 5,319,212.10, 7,979,939.10 and 1,724,698.80
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Solution
The fourth proportional to 5,319,212.10, 7,979,939.10 and 1,724,698.80 is: 2,587,411.66
Step by Step Solution
- Step 1: Write the proportion equation
5,319,212.10 : 7,979,939.10 = 1,724,698.80 : x - Step 2: Convert to fraction form
5,319,212.10/7,979,939.10 = 1,724,698.80/x - Step 3: Cross multiply
5,319,212.10x = 7,979,939.10 × 1,724,698.80 - Step 4: Simplify right side
5,319,212.10x = 13,762,991,389,843.08 - Step 5: Solve for x
x = 13,762,991,389,843.08/5,319,212.10 - Step 6: Final answer
x = 2,587,411.66
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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.