Finding the Fourth Proportional to 2,890,107.72, 3,988,298.79 and 1,600,921.08
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Solution
The fourth proportional to 2,890,107.72, 3,988,298.79 and 1,600,921.08 is: 2,209,243.47
Step by Step Solution
- Step 1: Write the proportion equation
2,890,107.72 : 3,988,298.79 = 1,600,921.08 : x - Step 2: Convert to fraction form
2,890,107.72/3,988,298.79 = 1,600,921.08/x - Step 3: Cross multiply
2,890,107.72x = 3,988,298.79 × 1,600,921.08 - Step 4: Simplify right side
2,890,107.72x = 6,384,951,606,249.49 - Step 5: Solve for x
x = 6,384,951,606,249.49/2,890,107.72 - Step 6: Final answer
x = 2,209,243.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.