Finding the Fourth Proportional to 427,808.18, 589,947.09 and 284,574.26
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Solution
The fourth proportional to 427,808.18, 589,947.09 and 284,574.26 is: 392,427.64
Step by Step Solution
- Step 1: Write the proportion equation
427,808.18 : 589,947.09 = 284,574.26 : x - Step 2: Convert to fraction form
427,808.18/589,947.09 = 284,574.26/x - Step 3: Cross multiply
427,808.18x = 589,947.09 × 284,574.26 - Step 4: Simplify right side
427,808.18x = 167,883,756,575.90 - Step 5: Solve for x
x = 167,883,756,575.90/427,808.18 - Step 6: Final answer
x = 392,427.64
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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.