Finding the Fourth Proportional to 4,308,689.80, 6,463,982.40 and 1,276,292.80
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Solution
The fourth proportional to 4,308,689.80, 6,463,982.40 and 1,276,292.80 is: 1,914,719.92
Step by Step Solution
- Step 1: Write the proportion equation
4,308,689.80 : 6,463,982.40 = 1,276,292.80 : x - Step 2: Convert to fraction form
4,308,689.80/6,463,982.40 = 1,276,292.80/x - Step 3: Cross multiply
4,308,689.80x = 6,463,982.40 × 1,276,292.80 - Step 4: Simplify right side
4,308,689.80x = 8,249,934,196,446.72 - Step 5: Solve for x
x = 8,249,934,196,446.72/4,308,689.80 - Step 6: Final answer
x = 1,914,719.92
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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.