Finding the Fourth Proportional to 1,277,120.79, 1,762,733.76 and 767,724.75
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Solution
The fourth proportional to 1,277,120.79, 1,762,733.76 and 767,724.75 is: 1,059,644.75
Step by Step Solution
- Step 1: Write the proportion equation
1,277,120.79 : 1,762,733.76 = 767,724.75 : x - Step 2: Convert to fraction form
1,277,120.79/1,762,733.76 = 767,724.75/x - Step 3: Cross multiply
1,277,120.79x = 1,762,733.76 × 767,724.75 - Step 4: Simplify right side
1,277,120.79x = 1,353,294,335,212.56 - Step 5: Solve for x
x = 1,353,294,335,212.56/1,277,120.79 - Step 6: Final answer
x = 1,059,644.75
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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.