Finding the Fourth Proportional to 1,285,649.51, 1,774,076.99 and 712,640.93
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Solution
The fourth proportional to 1,285,649.51, 1,774,076.99 and 712,640.93 is: 983,378.33
Step by Step Solution
- Step 1: Write the proportion equation
1,285,649.51 : 1,774,076.99 = 712,640.93 : x - Step 2: Convert to fraction form
1,285,649.51/1,774,076.99 = 712,640.93/x - Step 3: Cross multiply
1,285,649.51x = 1,774,076.99 × 712,640.93 - Step 4: Simplify right side
1,285,649.51x = 1,264,279,863,611.61 - Step 5: Solve for x
x = 1,264,279,863,611.61/1,285,649.51 - Step 6: Final answer
x = 983,378.33
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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.