Finding the Fourth Proportional to 638,767.91, 881,519.41 and 366,890.34
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Solution
The fourth proportional to 638,767.91, 881,519.41 and 366,890.34 is: 506,319.99
Step by Step Solution
- Step 1: Write the proportion equation
638,767.91 : 881,519.41 = 366,890.34 : x - Step 2: Convert to fraction form
638,767.91/881,519.41 = 366,890.34/x - Step 3: Cross multiply
638,767.91x = 881,519.41 × 366,890.34 - Step 4: Simplify right side
638,767.91x = 323,420,957,752.05 - Step 5: Solve for x
x = 323,420,957,752.05/638,767.91 - Step 6: Final answer
x = 506,319.99
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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.