Finding the Fourth Proportional to 490,219.34, 676,397.74 and 286,177.66
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Solution
The fourth proportional to 490,219.34, 676,397.74 and 286,177.66 is: 394,863.90
Step by Step Solution
- Step 1: Write the proportion equation
490,219.34 : 676,397.74 = 286,177.66 : x - Step 2: Convert to fraction form
490,219.34/676,397.74 = 286,177.66/x - Step 3: Cross multiply
490,219.34x = 676,397.74 × 286,177.66 - Step 4: Simplify right side
490,219.34x = 193,569,922,462.49 - Step 5: Solve for x
x = 193,569,922,462.49/490,219.34 - Step 6: Final answer
x = 394,863.90
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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.