Finding the Fourth Proportional to 489,981.29, 676,207.61 and 272,215.49
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Solution
The fourth proportional to 489,981.29, 676,207.61 and 272,215.49 is: 375,675.95
Step by Step Solution
- Step 1: Write the proportion equation
489,981.29 : 676,207.61 = 272,215.49 : x - Step 2: Convert to fraction form
489,981.29/676,207.61 = 272,215.49/x - Step 3: Cross multiply
489,981.29x = 676,207.61 × 272,215.49 - Step 4: Simplify right side
489,981.29x = 184,074,185,897.88 - Step 5: Solve for x
x = 184,074,185,897.88/489,981.29 - Step 6: Final answer
x = 375,675.95
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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.