Finding the Fourth Proportional to 413,870.68, 620,806.02 and 147,620.44
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Solution
The fourth proportional to 413,870.68, 620,806.02 and 147,620.44 is: 221,430.66
Step by Step Solution
- Step 1: Write the proportion equation
413,870.68 : 620,806.02 = 147,620.44 : x - Step 2: Convert to fraction form
413,870.68/620,806.02 = 147,620.44/x - Step 3: Cross multiply
413,870.68x = 620,806.02 × 147,620.44 - Step 4: Simplify right side
413,870.68x = 91,643,657,827.05 - Step 5: Solve for x
x = 91,643,657,827.05/413,870.68 - Step 6: Final answer
x = 221,430.66
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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.