Finding the Fourth Proportional to 843,418.08, 1,264,928.40 and 310,649.76
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Solution
The fourth proportional to 843,418.08, 1,264,928.40 and 310,649.76 is: 465,901.45
Step by Step Solution
- Step 1: Write the proportion equation
843,418.08 : 1,264,928.40 = 310,649.76 : x - Step 2: Convert to fraction form
843,418.08/1,264,928.40 = 310,649.76/x - Step 3: Cross multiply
843,418.08x = 1,264,928.40 × 310,649.76 - Step 4: Simplify right side
843,418.08x = 392,949,703,877.18 - Step 5: Solve for x
x = 392,949,703,877.18/843,418.08 - Step 6: Final answer
x = 465,901.45
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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.