Finding the Fourth Proportional to 1,424,930.13, 1,966,409.87 and 780,354.81
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Solution
The fourth proportional to 1,424,930.13, 1,966,409.87 and 780,354.81 is: 1,076,893.08
Step by Step Solution
- Step 1: Write the proportion equation
1,424,930.13 : 1,966,409.87 = 780,354.81 : x - Step 2: Convert to fraction form
1,424,930.13/1,966,409.87 = 780,354.81/x - Step 3: Cross multiply
1,424,930.13x = 1,966,409.87 × 780,354.81 - Step 4: Simplify right side
1,424,930.13x = 1,534,497,396,584.20 - Step 5: Solve for x
x = 1,534,497,396,584.20/1,424,930.13 - Step 6: Final answer
x = 1,076,893.08
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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.