Finding the Fourth Proportional to 1,492,125.76, 2,236,316.69 and 638,195.21
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Solution
The fourth proportional to 1,492,125.76, 2,236,316.69 and 638,195.21 is: 956,492.17
Step by Step Solution
- Step 1: Write the proportion equation
1,492,125.76 : 2,236,316.69 = 638,195.21 : x - Step 2: Convert to fraction form
1,492,125.76/2,236,316.69 = 638,195.21/x - Step 3: Cross multiply
1,492,125.76x = 2,236,316.69 × 638,195.21 - Step 4: Simplify right side
1,492,125.76x = 1,427,206,599,601.05 - Step 5: Solve for x
x = 1,427,206,599,601.05/1,492,125.76 - Step 6: Final answer
x = 956,492.17
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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.