Finding the Fourth Proportional to 654,316.68, 902,971.26 and 399,808.20
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Solution
The fourth proportional to 654,316.68, 902,971.26 and 399,808.20 is: 551,744.02
Step by Step Solution
- Step 1: Write the proportion equation
654,316.68 : 902,971.26 = 399,808.20 : x - Step 2: Convert to fraction form
654,316.68/902,971.26 = 399,808.20/x - Step 3: Cross multiply
654,316.68x = 902,971.26 × 399,808.20 - Step 4: Simplify right side
654,316.68x = 361,015,314,112.33 - Step 5: Solve for x
x = 361,015,314,112.33/654,316.68 - Step 6: Final answer
x = 551,744.02
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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.