Finding the Fourth Proportional to 1,321,339.03, 1,982,303.79 and 422,834.68
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Solution
The fourth proportional to 1,321,339.03, 1,982,303.79 and 422,834.68 is: 634,346.50
Step by Step Solution
- Step 1: Write the proportion equation
1,321,339.03 : 1,982,303.79 = 422,834.68 : x - Step 2: Convert to fraction form
1,321,339.03/1,982,303.79 = 422,834.68/x - Step 3: Cross multiply
1,321,339.03x = 1,982,303.79 × 422,834.68 - Step 4: Simplify right side
1,321,339.03x = 838,186,788,707.44 - Step 5: Solve for x
x = 838,186,788,707.44/1,321,339.03 - Step 6: Final answer
x = 634,346.50
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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.