Finding the Fourth Proportional to 489,959.65, 676,163.28 and 272,184.82
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Solution
The fourth proportional to 489,959.65, 676,163.28 and 272,184.82 is: 375,625.59
Step by Step Solution
- Step 1: Write the proportion equation
489,959.65 : 676,163.28 = 272,184.82 : x - Step 2: Convert to fraction form
489,959.65/676,163.28 = 272,184.82/x - Step 3: Cross multiply
489,959.65x = 676,163.28 × 272,184.82 - Step 4: Simplify right side
489,959.65x = 184,041,380,657.41 - Step 5: Solve for x
x = 184,041,380,657.41/489,959.65 - Step 6: Final answer
x = 375,625.59
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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.