Finding the Fourth Proportional to 739,341.87, 1,020,291.83 and 399,810.12
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Solution
The fourth proportional to 739,341.87, 1,020,291.83 and 399,810.12 is: 551,737.99
Step by Step Solution
- Step 1: Write the proportion equation
739,341.87 : 1,020,291.83 = 399,810.12 : x - Step 2: Convert to fraction form
739,341.87/1,020,291.83 = 399,810.12/x - Step 3: Cross multiply
739,341.87x = 1,020,291.83 × 399,810.12 - Step 4: Simplify right side
739,341.87x = 407,922,998,987.32 - Step 5: Solve for x
x = 407,922,998,987.32/739,341.87 - Step 6: Final answer
x = 551,737.99
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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.