Finding the Fourth Proportional to 780,378.77, 1,077,059.75 and 453,792.84
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Solution
The fourth proportional to 780,378.77, 1,077,059.75 and 453,792.84 is: 626,313.81
Step by Step Solution
- Step 1: Write the proportion equation
780,378.77 : 1,077,059.75 = 453,792.84 : x - Step 2: Convert to fraction form
780,378.77/1,077,059.75 = 453,792.84/x - Step 3: Cross multiply
780,378.77x = 1,077,059.75 × 453,792.84 - Step 4: Simplify right side
780,378.77x = 488,762,000,533.23 - Step 5: Solve for x
x = 488,762,000,533.23/780,378.77 - Step 6: Final answer
x = 626,313.81
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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.