Finding the Fourth Proportional to 712,365.93, 1,066,852.62 and 412,213.95
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Solution
The fourth proportional to 712,365.93, 1,066,852.62 and 412,213.95 is: 617,339.37
Step by Step Solution
- Step 1: Write the proportion equation
712,365.93 : 1,066,852.62 = 412,213.95 : x - Step 2: Convert to fraction form
712,365.93/1,066,852.62 = 412,213.95/x - Step 3: Cross multiply
712,365.93x = 1,066,852.62 × 412,213.95 - Step 4: Simplify right side
712,365.93x = 439,771,532,558.05 - Step 5: Solve for x
x = 439,771,532,558.05/712,365.93 - Step 6: Final answer
x = 617,339.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.