Finding the Fourth Proportional to 1,425,167.10, 1,966,762.49 and 813,307.68
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Solution
The fourth proportional to 1,425,167.10, 1,966,762.49 and 813,307.68 is: 1,122,382.80
Step by Step Solution
- Step 1: Write the proportion equation
1,425,167.10 : 1,966,762.49 = 813,307.68 : x - Step 2: Convert to fraction form
1,425,167.10/1,966,762.49 = 813,307.68/x - Step 3: Cross multiply
1,425,167.10x = 1,966,762.49 × 813,307.68 - Step 4: Simplify right side
1,425,167.10x = 1,599,583,033,786.39 - Step 5: Solve for x
x = 1,599,583,033,786.39/1,425,167.10 - Step 6: Final answer
x = 1,122,382.80
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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.