Finding the Fourth Proportional to 665,766.36, 918,775.44 and 407,637.72
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Solution
The fourth proportional to 665,766.36, 918,775.44 and 407,637.72 is: 562,550.99
Step by Step Solution
- Step 1: Write the proportion equation
665,766.36 : 918,775.44 = 407,637.72 : x - Step 2: Convert to fraction form
665,766.36/918,775.44 = 407,637.72/x - Step 3: Cross multiply
665,766.36x = 918,775.44 × 407,637.72 - Step 4: Simplify right side
665,766.36x = 374,527,525,553.60 - Step 5: Solve for x
x = 374,527,525,553.60/665,766.36 - Step 6: Final answer
x = 562,550.99
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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.