Finding the Fourth Proportional to 4,319,853.63, 6,480,830.20 and 1,328,037.63
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Solution
The fourth proportional to 4,319,853.63, 6,480,830.20 and 1,328,037.63 is: 1,992,379.17
Step by Step Solution
- Step 1: Write the proportion equation
4,319,853.63 : 6,480,830.20 = 1,328,037.63 : x - Step 2: Convert to fraction form
4,319,853.63/6,480,830.20 = 1,328,037.63/x - Step 3: Cross multiply
4,319,853.63x = 6,480,830.20 × 1,328,037.63 - Step 4: Simplify right side
4,319,853.63x = 8,606,786,379,240.43 - Step 5: Solve for x
x = 8,606,786,379,240.43/4,319,853.63 - Step 6: Final answer
x = 1,992,379.17
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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.