Finding the Fourth Proportional to 378,919.84, 522,950.16 and 283,262.08
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Solution
The fourth proportional to 378,919.84, 522,950.16 and 283,262.08 is: 390,932.16
Step by Step Solution
- Step 1: Write the proportion equation
378,919.84 : 522,950.16 = 283,262.08 : x - Step 2: Convert to fraction form
378,919.84/522,950.16 = 283,262.08/x - Step 3: Cross multiply
378,919.84x = 522,950.16 × 283,262.08 - Step 4: Simplify right side
378,919.84x = 148,131,950,057.93 - Step 5: Solve for x
x = 148,131,950,057.93/378,919.84 - Step 6: Final answer
x = 390,932.16
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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.