Finding the Fourth Proportional to 1,190,576.36, 1,643,025 and 646,711.98
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Solution
The fourth proportional to 1,190,576.36, 1,643,025 and 646,711.98 is: 892,478.63
Step by Step Solution
- Step 1: Write the proportion equation
1,190,576.36 : 1,643,025 = 646,711.98 : x - Step 2: Convert to fraction form
1,190,576.36/1,643,025 = 646,711.98/x - Step 3: Cross multiply
1,190,576.36x = 1,643,025 × 646,711.98 - Step 4: Simplify right side
1,190,576.36x = 1,062,563,950,939.50 - Step 5: Solve for x
x = 1,062,563,950,939.50/1,190,576.36 - Step 6: Final answer
x = 892,478.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.