Finding the Fourth Proportional to 1,692,912.97, 2,336,216.59 and 918,543.56
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Solution
The fourth proportional to 1,692,912.97, 2,336,216.59 and 918,543.56 is: 1,267,588.32
Step by Step Solution
- Step 1: Write the proportion equation
1,692,912.97 : 2,336,216.59 = 918,543.56 : x - Step 2: Convert to fraction form
1,692,912.97/2,336,216.59 = 918,543.56/x - Step 3: Cross multiply
1,692,912.97x = 2,336,216.59 × 918,543.56 - Step 4: Simplify right side
1,692,912.97x = 2,145,916,703,509.66 - Step 5: Solve for x
x = 2,145,916,703,509.66/1,692,912.97 - Step 6: Final answer
x = 1,267,588.32
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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.