Finding the Fourth Proportional to 745,967.88, 1,030,290.84 and 492,450.84
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Solution
The fourth proportional to 745,967.88, 1,030,290.84 and 492,450.84 is: 680,146.70
Step by Step Solution
- Step 1: Write the proportion equation
745,967.88 : 1,030,290.84 = 492,450.84 : x - Step 2: Convert to fraction form
745,967.88/1,030,290.84 = 492,450.84/x - Step 3: Cross multiply
745,967.88x = 1,030,290.84 × 492,450.84 - Step 4: Simplify right side
745,967.88x = 507,367,589,602.31 - Step 5: Solve for x
x = 507,367,589,602.31/745,967.88 - Step 6: Final answer
x = 680,146.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.