Finding the Fourth Proportional to 1,424,635.14, 1,966,018.18 and 780,115.30
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Solution
The fourth proportional to 1,424,635.14, 1,966,018.18 and 780,115.30 is: 1,076,570.99
Step by Step Solution
- Step 1: Write the proportion equation
1,424,635.14 : 1,966,018.18 = 780,115.30 : x - Step 2: Convert to fraction form
1,424,635.14/1,966,018.18 = 780,115.30/x - Step 3: Cross multiply
1,424,635.14x = 1,966,018.18 × 780,115.30 - Step 4: Simplify right side
1,424,635.14x = 1,533,720,862,296.15 - Step 5: Solve for x
x = 1,533,720,862,296.15/1,424,635.14 - Step 6: Final answer
x = 1,076,570.99
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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.