Finding the Fourth Proportional to 663,815.70, 995,723.55 and 453,863.70
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Solution
The fourth proportional to 663,815.70, 995,723.55 and 453,863.70 is: 680,795.55
Step by Step Solution
- Step 1: Write the proportion equation
663,815.70 : 995,723.55 = 453,863.70 : x - Step 2: Convert to fraction form
663,815.70/995,723.55 = 453,863.70/x - Step 3: Cross multiply
663,815.70x = 995,723.55 × 453,863.70 - Step 4: Simplify right side
663,815.70x = 451,922,774,580.14 - Step 5: Solve for x
x = 451,922,774,580.14/663,815.70 - Step 6: Final answer
x = 680,795.55
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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.