Finding the Fourth Proportional to 1,861,921.42, 2,792,877.09 and 495,695.14
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Solution
The fourth proportional to 1,861,921.42, 2,792,877.09 and 495,695.14 is: 743,541.37
Step by Step Solution
- Step 1: Write the proportion equation
1,861,921.42 : 2,792,877.09 = 495,695.14 : x - Step 2: Convert to fraction form
1,861,921.42/2,792,877.09 = 495,695.14/x - Step 3: Cross multiply
1,861,921.42x = 2,792,877.09 × 495,695.14 - Step 4: Simplify right side
1,861,921.42x = 1,384,415,600,130.34 - Step 5: Solve for x
x = 1,384,415,600,130.34/1,861,921.42 - Step 6: Final answer
x = 743,541.37
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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.