Finding the Fourth Proportional to 1,492,124.76, 2,236,315.20 and 638,194.21
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Solution
The fourth proportional to 1,492,124.76, 2,236,315.20 and 638,194.21 is: 956,490.67
Step by Step Solution
- Step 1: Write the proportion equation
1,492,124.76 : 2,236,315.20 = 638,194.21 : x - Step 2: Convert to fraction form
1,492,124.76/2,236,315.20 = 638,194.21/x - Step 3: Cross multiply
1,492,124.76x = 2,236,315.20 × 638,194.21 - Step 4: Simplify right side
1,492,124.76x = 1,427,203,409,184.02 - Step 5: Solve for x
x = 1,427,203,409,184.02/1,492,124.76 - Step 6: Final answer
x = 956,490.67
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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.