Finding the Fourth Proportional to 780,335.10, 1,170,027.45 and 306,452.70
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Solution
The fourth proportional to 780,335.10, 1,170,027.45 and 306,452.70 is: 459,492.43
Step by Step Solution
- Step 1: Write the proportion equation
780,335.10 : 1,170,027.45 = 306,452.70 : x - Step 2: Convert to fraction form
780,335.10/1,170,027.45 = 306,452.70/x - Step 3: Cross multiply
780,335.10x = 1,170,027.45 × 306,452.70 - Step 4: Simplify right side
780,335.10x = 358,558,071,126.62 - Step 5: Solve for x
x = 358,558,071,126.62/780,335.10 - Step 6: Final answer
x = 459,492.43
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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.