Finding the Fourth Proportional to 780,955.45, 1,077,715.39 and 436,789.99
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Solution
The fourth proportional to 780,955.45, 1,077,715.39 and 436,789.99 is: 602,768.44
Step by Step Solution
- Step 1: Write the proportion equation
780,955.45 : 1,077,715.39 = 436,789.99 : x - Step 2: Convert to fraction form
780,955.45/1,077,715.39 = 436,789.99/x - Step 3: Cross multiply
780,955.45x = 1,077,715.39 × 436,789.99 - Step 4: Simplify right side
780,955.45x = 470,735,294,420.95 - Step 5: Solve for x
x = 470,735,294,420.95/780,955.45 - Step 6: Final answer
x = 602,768.44
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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.