Finding the Fourth Proportional to 1,235,918.60, 1,853,877.90 and 394,497.80
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Solution
The fourth proportional to 1,235,918.60, 1,853,877.90 and 394,497.80 is: 591,746.70
Step by Step Solution
- Step 1: Write the proportion equation
1,235,918.60 : 1,853,877.90 = 394,497.80 : x - Step 2: Convert to fraction form
1,235,918.60/1,853,877.90 = 394,497.80/x - Step 3: Cross multiply
1,235,918.60x = 1,853,877.90 × 394,497.80 - Step 4: Simplify right side
1,235,918.60x = 731,350,753,018.62 - Step 5: Solve for x
x = 731,350,753,018.62/1,235,918.60 - Step 6: Final answer
x = 591,746.70
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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.