Finding the Fourth Proportional to 1,620,651.65, 2,430,979.29 and 422,572.95
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Solution
The fourth proportional to 1,620,651.65, 2,430,979.29 and 422,572.95 is: 633,859.90
Step by Step Solution
- Step 1: Write the proportion equation
1,620,651.65 : 2,430,979.29 = 422,572.95 : x - Step 2: Convert to fraction form
1,620,651.65/2,430,979.29 = 422,572.95/x - Step 3: Cross multiply
1,620,651.65x = 2,430,979.29 × 422,572.95 - Step 4: Simplify right side
1,620,651.65x = 1,027,266,089,964.21 - Step 5: Solve for x
x = 1,027,266,089,964.21/1,620,651.65 - Step 6: Final answer
x = 633,859.90
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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.