Finding the Fourth Proportional to 490,154.12, 676,407.48 and 275,278.76
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Solution
The fourth proportional to 490,154.12, 676,407.48 and 275,278.76 is: 379,881.77
Step by Step Solution
- Step 1: Write the proportion equation
490,154.12 : 676,407.48 = 275,278.76 : x - Step 2: Convert to fraction form
490,154.12/676,407.48 = 275,278.76/x - Step 3: Cross multiply
490,154.12x = 676,407.48 × 275,278.76 - Step 4: Simplify right side
490,154.12x = 186,200,612,349.13 - Step 5: Solve for x
x = 186,200,612,349.13/490,154.12 - Step 6: Final answer
x = 379,881.77
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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.