Finding the Fourth Proportional to 628,556.68, 867,427.80 and 356,636.02
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Solution
The fourth proportional to 628,556.68, 867,427.80 and 356,636.02 is: 492,168.82
Step by Step Solution
- Step 1: Write the proportion equation
628,556.68 : 867,427.80 = 356,636.02 : x - Step 2: Convert to fraction form
628,556.68/867,427.80 = 356,636.02/x - Step 3: Cross multiply
628,556.68x = 867,427.80 × 356,636.02 - Step 4: Simplify right side
628,556.68x = 309,355,998,229.36 - Step 5: Solve for x
x = 309,355,998,229.36/628,556.68 - Step 6: Final answer
x = 492,168.82
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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.