Finding the Fourth Proportional to 2,187,037.80, 3,280,556.70 and 1,513,879.20
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Solution
The fourth proportional to 2,187,037.80, 3,280,556.70 and 1,513,879.20 is: 2,270,818.80
Step by Step Solution
- Step 1: Write the proportion equation
2,187,037.80 : 3,280,556.70 = 1,513,879.20 : x - Step 2: Convert to fraction form
2,187,037.80/3,280,556.70 = 1,513,879.20/x - Step 3: Cross multiply
2,187,037.80x = 3,280,556.70 × 1,513,879.20 - Step 4: Simplify right side
2,187,037.80x = 4,966,366,552,550.64 - Step 5: Solve for x
x = 4,966,366,552,550.64/2,187,037.80 - Step 6: Final answer
x = 2,270,818.80
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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.