Finding the Fourth Proportional to 1,310,938.56, 1,966,701.21 and 400,201.98
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Solution
The fourth proportional to 1,310,938.56, 1,966,701.21 and 400,201.98 is: 600,392.53
Step by Step Solution
- Step 1: Write the proportion equation
1,310,938.56 : 1,966,701.21 = 400,201.98 : x - Step 2: Convert to fraction form
1,310,938.56/1,966,701.21 = 400,201.98/x - Step 3: Cross multiply
1,310,938.56x = 1,966,701.21 × 400,201.98 - Step 4: Simplify right side
1,310,938.56x = 787,077,718,310.40 - Step 5: Solve for x
x = 787,077,718,310.40/1,310,938.56 - Step 6: Final answer
x = 600,392.53
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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.