Finding the Fourth Proportional to 805,486.91, 1,207,432.17 and 378,257.94
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Solution
The fourth proportional to 805,486.91, 1,207,432.17 and 378,257.94 is: 567,012.08
Step by Step Solution
- Step 1: Write the proportion equation
805,486.91 : 1,207,432.17 = 378,257.94 : x - Step 2: Convert to fraction form
805,486.91/1,207,432.17 = 378,257.94/x - Step 3: Cross multiply
805,486.91x = 1,207,432.17 × 378,257.94 - Step 4: Simplify right side
805,486.91x = 456,720,805,313.93 - Step 5: Solve for x
x = 456,720,805,313.93/805,486.91 - Step 6: Final answer
x = 567,012.08
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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.