Finding the Fourth Proportional to 2,143,646.20, 3,209,939.70 and 1,701,278.20
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Solution
The fourth proportional to 2,143,646.20, 3,209,939.70 and 1,701,278.20 is: 2,547,528.80
Step by Step Solution
- Step 1: Write the proportion equation
2,143,646.20 : 3,209,939.70 = 1,701,278.20 : x - Step 2: Convert to fraction form
2,143,646.20/3,209,939.70 = 1,701,278.20/x - Step 3: Cross multiply
2,143,646.20x = 3,209,939.70 × 1,701,278.20 - Step 4: Simplify right side
2,143,646.20x = 5,461,000,434,924.54 - Step 5: Solve for x
x = 5,461,000,434,924.54/2,143,646.20 - Step 6: Final answer
x = 2,547,528.80
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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.