Finding the Fourth Proportional to 427,078.68, 589,427.10 and 245,786.82
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Solution
The fourth proportional to 427,078.68, 589,427.10 and 245,786.82 is: 339,219.49
Step by Step Solution
- Step 1: Write the proportion equation
427,078.68 : 589,427.10 = 245,786.82 : x - Step 2: Convert to fraction form
427,078.68/589,427.10 = 245,786.82/x - Step 3: Cross multiply
427,078.68x = 589,427.10 × 245,786.82 - Step 4: Simplify right side
427,078.68x = 144,873,412,530.82 - Step 5: Solve for x
x = 144,873,412,530.82/427,078.68 - Step 6: Final answer
x = 339,219.49
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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.