Finding the Fourth Proportional to 1,394,218.70, 2,091,284.85 and 396,946.70
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Solution
The fourth proportional to 1,394,218.70, 2,091,284.85 and 396,946.70 is: 595,407.75
Step by Step Solution
- Step 1: Write the proportion equation
1,394,218.70 : 2,091,284.85 = 396,946.70 : x - Step 2: Convert to fraction form
1,394,218.70/2,091,284.85 = 396,946.70/x - Step 3: Cross multiply
1,394,218.70x = 2,091,284.85 × 396,946.70 - Step 4: Simplify right side
1,394,218.70x = 830,128,619,967.50 - Step 5: Solve for x
x = 830,128,619,967.50/1,394,218.70 - Step 6: Final answer
x = 595,407.75
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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.