Finding the Fourth Proportional to 408,560.11, 613,841.05 and 385,900.09
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Solution
The fourth proportional to 408,560.11, 613,841.05 and 385,900.09 is: 579,795.51
Step by Step Solution
- Step 1: Write the proportion equation
408,560.11 : 613,841.05 = 385,900.09 : x - Step 2: Convert to fraction form
408,560.11/613,841.05 = 385,900.09/x - Step 3: Cross multiply
408,560.11x = 613,841.05 × 385,900.09 - Step 4: Simplify right side
408,560.11x = 236,881,315,388.47 - Step 5: Solve for x
x = 236,881,315,388.47/408,560.11 - Step 6: Final answer
x = 579,795.51
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1.5x scale
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.