Finding the Fourth Proportional to 885,728.54, 1,328,803.70 and 286,689.80
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Solution
The fourth proportional to 885,728.54, 1,328,803.70 and 286,689.80 is: 430,102.95
Step by Step Solution
- Step 1: Write the proportion equation
885,728.54 : 1,328,803.70 = 286,689.80 : x - Step 2: Convert to fraction form
885,728.54/1,328,803.70 = 286,689.80/x - Step 3: Cross multiply
885,728.54x = 1,328,803.70 × 286,689.80 - Step 4: Simplify right side
885,728.54x = 380,954,458,914.79 - Step 5: Solve for x
x = 380,954,458,914.79/885,728.54 - Step 6: Final answer
x = 430,102.95
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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.