Finding the Fourth Proportional to 2,161,332.05, 2,982,642.99 and 1,181,286.79
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Solution
The fourth proportional to 2,161,332.05, 2,982,642.99 and 1,181,286.79 is: 1,630,178.37
Step by Step Solution
- Step 1: Write the proportion equation
2,161,332.05 : 2,982,642.99 = 1,181,286.79 : x - Step 2: Convert to fraction form
2,161,332.05/2,982,642.99 = 1,181,286.79/x - Step 3: Cross multiply
2,161,332.05x = 2,982,642.99 × 1,181,286.79 - Step 4: Simplify right side
2,161,332.05x = 3,523,356,751,486.67 - Step 5: Solve for x
x = 3,523,356,751,486.67/2,161,332.05 - Step 6: Final answer
x = 1,630,178.37
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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.